Summary
Plan status as of 2026-09-30: No county-level plan row in FEMA data.
Highest expected annual loss (FEMA National Risk Index, modeled total; see B1-a): Inland Flooding ($240,493,990 a year), Hurricane ($15,317,303) and Cold Wave ($12,106,627).
The tables that follow are organized by the items of FEMA's Local Mitigation Plan Review Tool, Element B (B1-a to B2-c); each heading says which item its tables support.
Plan clock
No county-level plan row in FEMA data
What changed since your last plan
Not available. Connecticut planning regions have no county-level plan in FEMA data; see each town's plan dates in the region.
Sources: 1, 2, 4, 6 (numbered list at the end)
Plan status for every jurisdiction listed in this planning region: 46 rows, in the section "Plan clock: Plan status for every jurisdiction listed in this planning region" on the following pages.
State plan status and tribal plans in this state: see the state page.
Plan clock
Plan status for every jurisdiction listed in this planning region
Source: 1
| Jurisdiction | Type | Status | Plan | Approved | Expires | Days to expirynegative = days since expiry |
|---|---|---|---|---|---|---|
| Hartford city | City | Approved, expires 2029-08-20 | Capitol Region Natural Hazard Mitigation and Climate Adaptation Plan Update 2024-2029 (FEMA plan 109740) | 2024-08-21 | 2029-08-20 | 1,055 |
| New Britain city | City | Approved, expires 2029-08-20 | Capitol Region Natural Hazard Mitigation and Climate Adaptation Plan Update 2024-2029 (FEMA plan 109740) | 2024-08-21 | 2029-08-20 | 1,055 |
| Andover town | Town | Approved, expires 2029-08-20 | Capitol Region Natural Hazard Mitigation and Climate Adaptation Plan Update 2024-2029 (FEMA plan 109740) | 2024-08-21 | 2029-08-20 | 1,055 |
| Avon town | Town | Approved, expires 2029-08-20 | Capitol Region Natural Hazard Mitigation and Climate Adaptation Plan Update 2024-2029 (FEMA plan 109740) | 2024-08-21 | 2029-08-20 | 1,055 |
| Berlin town | Town | Approved, expires 2029-08-20 | Capitol Region Natural Hazard Mitigation and Climate Adaptation Plan Update 2024-2029 (FEMA plan 109740) | 2024-08-21 | 2029-08-20 | 1,055 |
| Bloomfield town | Town | Approved, expires 2029-08-20 | Capitol Region Natural Hazard Mitigation and Climate Adaptation Plan Update 2024-2029 (FEMA plan 109740) | 2024-08-21 | 2029-08-20 | 1,055 |
| Bolton town | Town | Approved, expires 2029-08-20 | Capitol Region Natural Hazard Mitigation and Climate Adaptation Plan Update 2024-2029 (FEMA plan 109740) | 2024-08-21 | 2029-08-20 | 1,055 |
| Canton town | Town | Approved, expires 2029-08-20 | Capitol Region Natural Hazard Mitigation and Climate Adaptation Plan Update 2024-2029 (FEMA plan 109740) | 2024-08-21 | 2029-08-20 | 1,055 |
| Columbia town | Town | Approved, expires 2029-08-20 | Capitol Region Natural Hazard Mitigation and Climate Adaptation Plan Update 2024-2029 (FEMA plan 109740) | 2024-08-21 | 2029-08-20 | 1,055 |
| Coventry town | Town | Approved, expires 2029-08-20 | Capitol Region Natural Hazard Mitigation and Climate Adaptation Plan Update 2024-2029 (FEMA plan 109740) | 2024-08-21 | 2029-08-20 | 1,055 |
| East Granby town | Town | Approved, expires 2029-08-20 | Capitol Region Natural Hazard Mitigation and Climate Adaptation Plan Update 2024-2029 (FEMA plan 109740) | 2024-08-21 | 2029-08-20 | 1,055 |
| East Hartford town | Town | Approved, expires 2029-08-20 | Capitol Region Natural Hazard Mitigation and Climate Adaptation Plan Update 2024-2029 (FEMA plan 109740) | 2024-08-21 | 2029-08-20 | 1,055 |
| East Windsor town | Town | Approved, expires 2029-08-20 | Capitol Region Natural Hazard Mitigation and Climate Adaptation Plan Update 2024-2029 (FEMA plan 109740) | 2024-08-21 | 2029-08-20 | 1,055 |
| Ellington town | Town | Approved, expires 2029-08-20 | Capitol Region Natural Hazard Mitigation and Climate Adaptation Plan Update 2024-2029 (FEMA plan 109740) | 2024-08-21 | 2029-08-20 | 1,055 |
| Enfield town | Town | Approved, expires 2029-08-20 | Capitol Region Natural Hazard Mitigation and Climate Adaptation Plan Update 2024-2029 (FEMA plan 109740) | 2024-08-21 | 2029-08-20 | 1,055 |
| Farmington town | Town | Approved, expires 2029-08-20 | Capitol Region Natural Hazard Mitigation and Climate Adaptation Plan Update 2024-2029 (FEMA plan 109740) | 2024-08-21 | 2029-08-20 | 1,055 |
| Glastonbury town | Town | Approved, expires 2029-08-20 | Capitol Region Natural Hazard Mitigation and Climate Adaptation Plan Update 2024-2029 (FEMA plan 109740) | 2024-08-21 | 2029-08-20 | 1,055 |
| Granby town | Town | Approved, expires 2029-08-20 | Capitol Region Natural Hazard Mitigation and Climate Adaptation Plan Update 2024-2029 (FEMA plan 109740) | 2024-08-21 | 2029-08-20 | 1,055 |
| Hebron town | Town | Approved, expires 2029-08-20 | Capitol Region Natural Hazard Mitigation and Climate Adaptation Plan Update 2024-2029 (FEMA plan 109740) | 2024-08-21 | 2029-08-20 | 1,055 |
| Manchester town | Town | Approved, expires 2029-08-20 | Capitol Region Natural Hazard Mitigation and Climate Adaptation Plan Update 2024-2029 (FEMA plan 109740) | 2024-08-21 | 2029-08-20 | 1,055 |
| Mansfield town | Town | Approved, expires 2029-08-20 | Capitol Region Natural Hazard Mitigation and Climate Adaptation Plan Update 2024-2029 (FEMA plan 109740) | 2024-08-21 | 2029-08-20 | 1,055 |
| Marlborough town | Town | Approved, expires 2029-08-20 | Capitol Region Natural Hazard Mitigation and Climate Adaptation Plan Update 2024-2029 (FEMA plan 109740) | 2024-08-21 | 2029-08-20 | 1,055 |
| Newington town | Town | Approved, expires 2029-08-20 | Capitol Region Natural Hazard Mitigation and Climate Adaptation Plan Update 2024-2029 (FEMA plan 109740) | 2024-08-21 | 2029-08-20 | 1,055 |
| Plainville town | Town | Approved, expires 2029-08-20 | Capitol Region Natural Hazard Mitigation and Climate Adaptation Plan Update 2024-2029 (FEMA plan 109740) | 2024-08-21 | 2029-08-20 | 1,055 |
| Rocky Hill town | Town | Approved, expires 2029-08-20 | Capitol Region Natural Hazard Mitigation and Climate Adaptation Plan Update 2024-2029 (FEMA plan 109740) | 2024-08-21 | 2029-08-20 | 1,055 |
| Simsbury town | Town | Approved, expires 2029-08-20 | Capitol Region Natural Hazard Mitigation and Climate Adaptation Plan Update 2024-2029 (FEMA plan 109740) | 2024-08-21 | 2029-08-20 | 1,055 |
| Somers town | Town | Approved, expires 2029-08-20 | Capitol Region Natural Hazard Mitigation and Climate Adaptation Plan Update 2024-2029 (FEMA plan 109740) | 2024-08-21 | 2029-08-20 | 1,055 |
| South Windsor town | Town | Approved, expires 2029-08-20 | Capitol Region Natural Hazard Mitigation and Climate Adaptation Plan Update 2024-2029 (FEMA plan 109740) | 2024-08-21 | 2029-08-20 | 1,055 |
| Southington town | Town | Approved, expires 2029-08-20 | Capitol Region Natural Hazard Mitigation and Climate Adaptation Plan Update 2024-2029 (FEMA plan 109740) | 2024-08-21 | 2029-08-20 | 1,055 |
| Stafford town | Town | Approved, expires 2029-08-20 | Capitol Region Natural Hazard Mitigation and Climate Adaptation Plan Update 2024-2029 (FEMA plan 109740) | 2024-08-21 | 2029-08-20 | 1,055 |
| Suffield town | Town | Approved, expires 2029-08-20 | Capitol Region Natural Hazard Mitigation and Climate Adaptation Plan Update 2024-2029 (FEMA plan 109740) | 2024-08-21 | 2029-08-20 | 1,055 |
| Tolland town | Town | Approved, expires 2029-08-20 | Capitol Region Natural Hazard Mitigation and Climate Adaptation Plan Update 2024-2029 (FEMA plan 109740) | 2024-08-21 | 2029-08-20 | 1,055 |
| Vernon town | Town | Approved, expires 2029-08-20 | Capitol Region Natural Hazard Mitigation and Climate Adaptation Plan Update 2024-2029 (FEMA plan 109740) | 2024-08-21 | 2029-08-20 | 1,055 |
| West Hartford town | Town | Approved, expires 2029-08-20 | Capitol Region Natural Hazard Mitigation and Climate Adaptation Plan Update 2024-2029 (FEMA plan 109740) | 2024-08-21 | 2029-08-20 | 1,055 |
| Wethersfield town | Town | Approved, expires 2029-08-20 | Capitol Region Natural Hazard Mitigation and Climate Adaptation Plan Update 2024-2029 (FEMA plan 109740) | 2024-08-21 | 2029-08-20 | 1,055 |
| Willington town | Town | Approved, expires 2029-08-20 | Capitol Region Natural Hazard Mitigation and Climate Adaptation Plan Update 2024-2029 (FEMA plan 109740) | 2024-08-21 | 2029-08-20 | 1,055 |
| Windsor Locks town | Town | Approved, expires 2029-08-20 | Capitol Region Natural Hazard Mitigation and Climate Adaptation Plan Update 2024-2029 (FEMA plan 109740) | 2024-08-21 | 2029-08-20 | 1,055 |
| Windsor town | Town | Approved, expires 2029-08-20 | Capitol Region Natural Hazard Mitigation and Climate Adaptation Plan Update 2024-2029 (FEMA plan 109740) | 2024-08-21 | 2029-08-20 | 1,055 |
| Asnuntuck Community | College/University | Expired on 2022-06-01 | Connecticut State Colleges and Universities (FEMA plan 102570) | 2017-06-02 | 2022-06-01 | -1,582 |
| Capital Community | College/University | Expired on 2022-06-01 | Connecticut State Colleges and Universities (FEMA plan 102570) | 2017-06-02 | 2022-06-01 | -1,582 |
| Central Connecticut State | College/University | Expired on 2022-06-01 | Connecticut State Colleges and Universities (FEMA plan 102570) | 2017-06-02 | 2022-06-01 | -1,582 |
| Charter Oak State | College/University | Expired on 2022-06-01 | Connecticut State Colleges and Universities (FEMA plan 102570) | 2017-06-02 | 2022-06-01 | -1,582 |
| CSCU Board of Regents | College/University | Expired on 2022-06-01 | Connecticut State Colleges and Universities (FEMA plan 102570) | 2017-06-02 | 2022-06-01 | -1,582 |
| Manchester Community | College/University | Expired on 2022-06-01 | Connecticut State Colleges and Universities (FEMA plan 102570) | 2017-06-02 | 2022-06-01 | -1,582 |
| Middlesex Community | College/University | Expired on 2022-06-01 | Connecticut State Colleges and Universities (FEMA plan 102570) | 2017-06-02 | 2022-06-01 | -1,582 |
| Tunxis Community | College/University | Expired on 2022-06-01 | Connecticut State Colleges and Universities (FEMA plan 102570) | 2017-06-02 | 2022-06-01 | -1,582 |
Supports FEMA checklist item B1-a: hazard identification
Hazards NRI does not cover (local data needed)
- dam failure (incl. upstream dams)
- levee failure
- flash flood as its own subtype
- ice jams
- debris flows
- erosion (riverine and coastal)
- land subsidence and sinkholes
- expansive soils
The 18 National Risk Index hazards, ranked by expected annual loss (EAL)
Sources: 5, 6
| Rank by EAL | Hazard | NRI risk rating | EAL rating | EAL buildingsmodeled dollars per year | EAL agriculturemodeled dollars per year | Cost of expected deaths and injuriesFEMA's dollar value per year, not property damage | EAL total (see note)modeled dollars per year | Storm Events records, 1996 to 2026-06-30count | Storm Events coverage note |
|---|---|---|---|---|---|---|---|---|---|
| 1 | Inland Flooding | Relatively High | Relatively High | $240,406,041 | $5,680 | $82,269 | $240,493,990 | 202 | |
| 2 | Hurricane | Relatively High | Relatively High | $13,670,746 | $1,167,073 | $479,484 | $15,317,303 | 4 | |
| 3 | Cold Wave | Relatively High | Relatively High | $2,437 | $29,120 | $12,075,070 | $12,106,627 | 7 | |
| 4 | Earthquake | Relatively Moderate | Relatively Moderate | $8,367,569 | n/a | $2,351,068 | $10,718,637 | Storm Events does not record earthquakes. | |
| 5 | Heat Wave | Relatively Moderate | Relatively Moderate | $42 | $28,811 | $8,690,086 | $8,718,939 | 25 | |
| 6 | Tornado | Relatively High | Relatively High | $6,416,085 | $3,899 | $1,739,392 | $8,159,376 | 12 | |
| 7 | Ice Storm | Very High | Very High | $1,486,608 | n/a | $471,813 | $1,958,420 | 4 | |
| 8 | Strong Wind | Relatively Moderate | Relatively High | $273,851 | $3,595 | $1,363,200 | $1,640,645 | 639 | Includes 36 High Wind and 56 Strong Wind records (NOAA non-thunderstorm wind types, outside NRI's Strong Wind definition). |
| 9 | Lightning | Relatively High | Relatively High | $96,662 | n/a | $1,382,130 | $1,478,792 | 41 | |
| 10 | Hail | Relatively Moderate | Relatively Moderate | $983,463 | $47,946 | $31,704 | $1,063,112 | 184 | |
| 11 | Winter Weather | Relatively High | Relatively High | $86,635 | $90 | $230,590 | $317,315 | 136 | |
| 12 | Drought | Relatively Low | Relatively Low | n/a | $192,586 | n/a | $192,586 | 9 | |
| 13 | Wildfire | Very Low | Very Low | $64,358 | $15 | $11,712 | $76,085 | 0 | Declared 1 time; no Storm Events record of this type. |
| 14 | Landslide | Relatively Moderate | Relatively Low | $40,121 | n/a | $3,972 | $44,093 | 0 | No recorded events in Storm Events since 1996 (data through 2026-06-30). |
| 15 | Coastal Flooding | Very Low | Very Low | $13,196 | n/a | $748 | $13,944 | 0 | No recorded events in Storm Events since 1996 (data through 2026-06-30). |
| Tsunami | Insufficient Data | Insufficient Data | n/a | n/a | n/a | n/a | 0 | No recorded events in Storm Events since 1996 (data through 2026-06-30). |
Total = buildings + agriculture + population equivalence; FEMA values each expected death (or 10 injuries) at $13.7 million (2024 dollars).
NRI risk rating combines expected annual loss with social vulnerability and community resilience; EAL rating rates expected annual loss alone. Both compare this county with all U.S. counties.
Local data needed: state and local wildfire, landslide and tsunami records (Storm Events records these hazards only in part).
Not applicable to this county per NRI, with no federal declaration and no Storm Events record since 1996: avalanche and volcanic activity. That is the evidence for leaving them out of the plan.
The state hazard mitigation plan also lists hazards for this county; FEMA asks the plan to explain any hazard it leaves out.
Supports FEMA checklist item B1-b: hazard location
Affects the whole county (national data give no location within it): Cold Wave, Drought, Hail, Heat Wave, Ice Storm, Lightning, Strong Wind and Winter Weather.
Coastal Flooding and Inland Flooding: The FEMA Flood Insurance Rate Map (FIRM) is the required location source for flooding. See the FEMA Flood Map Service Center (https://msc.fema.gov) for this county.
Hazards that vary within the county: highest-rated census tracts
Source: 5
| Hazard | Highest-rated census tractsNRI risk rating, score 0 to 100 |
|---|---|
| Earthquake | tract 5025 (Relatively Moderate, 83.8); tract 5021 (Relatively Moderate, 83.8); tract 5106 (Relatively Moderate, 81.1) |
| Hurricane | tract 8812 (Relatively Moderate, 82.8); tract 4841 (Relatively Moderate, 82.4); tract 4842 (Relatively Moderate, 82.1) |
| Landslide | tract 4641.01 (Relatively Moderate, 96.4); tract 4681.01 (Relatively Low, 95.6); tract 5241 (Relatively Low, 94.6) |
| Tornado | tract 5106 (Relatively Moderate, 56.6); tract 4841 (Relatively Moderate, 56.4); tract 5021 (Relatively Moderate, 55.7) |
| Tsunami | no tract has a National Risk Index rating for this hazard |
| Wildfire | tract 5038 (Relatively Low, 76.0); tract 4602.03 (Relatively Low, 73.0); tract 5241 (Relatively Low, 72.8) |
Up to 3 census tracts per hazard, highest National Risk Index rating first, then highest score; a tract number is the Census tract number (for example 5025 is Census Tract 5025). FEMA's Resilience Analysis and Planning Tool maps the National Risk Index for every tract: https://www.fema.gov/emergency-managers/practitioners/resilience-analysis-and-planning-tool
Supports FEMA checklist item B1-c: hazard extent
Extent: scale, observed range and worst recorded event per hazard
Sources: 6, 7
| Hazard | Scale | Recordscount and years | Observed range | Worst recorded event | Most damaging (when different) | How it applies to jurisdictions | Note |
|---|---|---|---|---|---|---|---|
| Coastal Flood, Storm Surge/Tide | none in data (flood depth: FIRM) | 0 | Flood depth: see the FEMA Flood Insurance Rate Map. | ||||
| Cold/Wind Chill, Extreme Cold/Wind Chill | wind chill | 7 records, 2000 to 2019 (7 zone-level) | 1 day; 4 with a recorded value | 1 consecutive day, 2019-01-21, zone-level | Countywide (zone-level records). | Cold/Wind Chill records from May to September (a frost night, not a cold wave) are counted but not used for the longest run. | |
| Frost/Freeze (outside NRI's Cold Wave definition) | crop damage | 0 | |||||
| Drought | U.S. Drought Monitor scale (D0 to D4) | 9 records, 2012 to 2017 (9 zone-level) | 13 days to 218 days (median 115.5 days); 2 with a recorded value | 218 days (about 7.2 months), 2016-09-13 to 2017-04-18, a run of 8 consecutive Storm Events drought records, zone-level | Countywide (zone-level records). | Storm Events enters a drought at D2 or worse east of the Rockies and D3 or worse from the Rockies west (NWS Instruction 10-1605); NRI drought counts D3 and D4 only. | |
| Earthquake | Modified Mercalli (local data) | 0 | Storm Events does not record earthquakes; the USGS earthquake catalog is the source. | ||||
| Hail | hail size (inches) | 227 records, 1956 to 2024 | 0.75 in to 2.75 in (median 0.88 in); 227 with a recorded value | 2.75 in hail, 1995-06-20; same size also recorded on 1995-06-20 | Hail, 1995-06-20, $200,000 property; crops not recorded (1995 dollars) | Event records naming jurisdictions in the plan: Enfield town (13 records), Hartford city (11 records), New Britain city (11 records), Manchester town (10 records), Tolland town (9 records), Vernon town (8 records), Avon town (7 records), Ellington town (7 records), Windsor town (7 records), Canton town (6 records); and 23 more jurisdictions (see the Excel file). | |
| Excessive Heat, Heat | heat index (in event narratives) | 25 records, 1997 to 2018 (25 zone-level) | 1 day to 3 days (median 1 day); 12 with a recorded value | 3 consecutive days, 1999-09-07 to 1999-09-09, zone-level | Countywide (zone-level records). | Heat records from November to March (unseasonable warmth, not a heat wave) are counted but not used for the longest run. | |
| Hurricane, Tropical Storm, Tropical Depression | Saffir-Simpson | 4 records, 2011 to 2021 (4 zone-level) | Strongest recorded: Tropical Storm record, 2011-08-28, $20,000,000 property; $0 crops (2011 dollars); NWS zone CTZ003 | Countywide (zone-level records). | Storm Events files every zone of a storm's episode under the storm's type; flooding from the storm is filed as Flood or Flash Flood records. | ||
| Ice Storm | Sperry-Piltz ice scale (local data) | 4 records, 1997 to 2007 (4 zone-level) | Ice Storm, 2002-11-16, $2,000,000 property; crops not reported (2002 dollars); NWS zone CTZ002 | Countywide (zone-level records). | |||
| Flash Flood, Flood, Lakeshore Flood | damage and flood days (flood depth: FIRM) | 202 records, 1996 to 2025 (40 zone-level) | Flood, 2011-08-28, $8,000,000 property; $0 crops (2011 dollars), 1 direct death | Event records naming jurisdictions in the plan: Hartford city (23 records), Southington town (10 records), West Hartford town (9 records), New Britain city (7 records), Newington town (7 records), Manchester town (6 records), Windsor town (5 records), Berlin town (4 records), Granby town (4 records), Simsbury town (4 records); and 15 more jurisdictions (see the Excel file). Zone-level records (40) apply countywide. | Flood depth: see the FEMA Flood Insurance Rate Map. Storm Events damage is often $0 or blank for floods, major ones included; FEMA Public Assistance by declaration (B1-d) shows which floods cost the most. | ||
| Debris Flow | none (count and damage only) | 0 | |||||
| Lightning | annualized frequency (the measure FEMA's Local Mitigation Planning Handbook names) | 41 records, 1996 to 2025 | Lightning, 2010-07-16, $75,000 property; $0 crops (2010 dollars) | Event records naming jurisdictions in the plan: Hartford city (3 records), Manchester town (3 records), Enfield town (2 records), New Britain city (2 records), Rocky Hill town (2 records), Avon town (1 record), Berlin town (1 record), Bolton town (1 record), Canton town (1 record), Farmington town (1 record); and 8 more jurisdictions (see the Excel file). | Storm Events lists lightning with damage or casualties. | ||
| High Wind and Strong Wind (outside NRI's Strong Wind definition) | wind speed (kt and mph) | 92 records, 1996 to 2025 (92 zone-level) | 27 kt (31 mph) to 62 kt (71 mph) (median 50 kt (58 mph)); 69 with a recorded value | 62 kt (71 mph) measured gust, High Wind, 2012-10-29; NWS zone CTZ002 | Countywide (zone-level records). | ||
| Thunderstorm Wind | wind speed (kt and mph) | 650 records, 1957 to 2026 | 40 kt (46 mph) to 87 kt (100 mph) (median 50 kt (58 mph)); 567 with a recorded value | 87 kt (100 mph) estimated gust, Thunderstorm Wind, 2012-08-10 | Thunderstorm Wind, 2018-08-02, $5,500,000 property; $0 crops (2018 dollars) | Event records naming jurisdictions in the plan: Hartford city (33 records), Tolland town (29 records), Enfield town (27 records), Ellington town (20 records), Simsbury town (18 records), Southington town (17 records), Manchester town (15 records), Vernon town (15 records), South Windsor town (14 records), Windsor town (14 records); and 27 more jurisdictions (see the Excel file). | |
| Tornado | Enhanced Fujita (Fujita before Feb 2007) | 33 records, 1951 to 2021 | F/EF0 to F/EF4 (median F/EF1); 33 with a recorded value | F4 tornado, 1979-10-03, 11.3 mi path length (whole path, pre-1996), 1,400 yd wide, $250,000,000 property; crops not recorded (1979 dollars), 3 direct deaths, 500 direct injuries | Event records naming jurisdictions in the plan: Somers town (2 records), Andover town (1 record), Avon town (1 record), Ellington town (1 record), Wethersfield town (1 record). | Before 1996 a tornado is listed once, under the county where it began, with its whole path's rating and length; from 1996 on, each county lists its own segment. Length is not used to rank tornadoes (see Methods). | |
| Tsunami | none (count and damage only) | 0 | |||||
| Wildfire | acres burned (local data) | 0 | |||||
| Winter Storm, Heavy Snow, Blizzard, Lake-Effect Snow, Winter Weather, Sleet | none in data (snowfall: local data) | 136 records, 1996 to 2026 (136 zone-level) | Heavy Snow, 2011-10-29, $8,000,000 property; $0 crops (2011 dollars); NWS zone CTZ002 | Countywide (zone-level records). |
Where a hazard names more than 10 jurisdictions, the table lists the 10 with the most records; every one is in the Excel file, sheet "B1-c Extent".
In event narratives only (local data needed): wind chill, temperature, heat index, ice thickness, acres burned and snow depth; any physical measure of debris flow, lightning and tsunami.
Storm Events records are more complete after 1996; before 1996 only Tornado (from 1950), Hail and Thunderstorm Wind (from 1955) exist. Zone-level records from zones that no NWS zone-county file places in this county (mostly before 2020) are not counted here (the Methods page explains the zone matching).
Dollars are nominal (as reported), labeled with the year; not adjusted for inflation.
Supports FEMA checklist item B1-d: previous occurrences
Federal declarations for this county: 58 declarations covering 23 separate hazard incidents counted in this packet (declarations for the same incident count once; non-natural and evacuation-only declarations are not counted).
Connecticut planning regions have no county-level plan in FEMA data; see each town's plan dates in the region.
Federal disaster declarations for this county
Sources: 1, 2, 3
| Declared | Incident began | FEMA number | Type | Title | Mapped hazard | County Public Assistancefederal share obligated, nominal dollars | Flags | Notes |
|---|---|---|---|---|---|---|---|---|
| 2024-10-24 | 2024-10-21 | FM-5542-CT | Fire management | Hawthorne Fire | Wildfire | within last 5 years | former Hartford County total, not this region: no Public Assistance recorded | |
| 2021-08-22 | 2021-08-21 | EM-3564-CT | Emergency | Hurricane Henri | Hurricane | former Tolland County total, not this region: no Public Assistance recorded | ||
| 2021-08-22 | 2021-08-21 | EM-3564-CT | Emergency | Hurricane Henri | Hurricane | former Hartford County total, not this region: no Public Assistance recorded | ||
| 2021-01-12 | 2020-08-04 | DR-4580-CT | Major disaster | Tropical Storm Isaias | Hurricane | former Tolland County total, not this region: $921,761.71 | ||
| 2021-01-12 | 2020-08-04 | DR-4580-CT | Major disaster | Tropical Storm Isaias | Hurricane | former Hartford County total, not this region: $7,290,116.15 | ||
| 2020-08-06 | 2020-08-04 | EM-3535-CT | Emergency | Tropical Storm Isaias | Hurricane | same incident as DR-4580; former Tolland County total, not this region: no Public Assistance recorded | ||
| 2020-08-06 | 2020-08-04 | EM-3535-CT | Emergency | Tropical Storm Isaias | Hurricane | same incident as DR-4580; former Hartford County total, not this region: no Public Assistance recorded | ||
| 2020-03-28 | 2020-01-20 | DR-4500-CT | Major disaster | COVID-19 Pandemic | Non-natural, not counted | former Tolland County total, not this region: $4,173,846.07 | ||
| 2020-03-28 | 2020-01-20 | DR-4500-CT | Major disaster | COVID-19 Pandemic | Non-natural, not counted | former Hartford County total, not this region: $130,418,030.34 | ||
| 2020-03-13 | 2020-01-20 | EM-3439-CT | Emergency | COVID-19 | Non-natural, not counted | same incident as DR-4500; former Tolland County total, not this region: no Public Assistance recorded | ||
| 2020-03-13 | 2020-01-20 | EM-3439-CT | Emergency | COVID-19 | Non-natural, not counted | same incident as DR-4500; former Hartford County total, not this region: no Public Assistance recorded | ||
| 2015-04-08 | 2015-01-26 | DR-4213-CT | Major disaster | Severe Winter Storm and Snowstorm | Winter Weather | former Tolland County total, not this region: $1,118,855.58 | ||
| 2013-03-21 | 2013-02-08 | DR-4106-CT | Major disaster | Severe Winter Storm and Snowstorm | Winter Weather | former Tolland County total, not this region: $949,497.65 | ||
| 2013-03-21 | 2013-02-08 | DR-4106-CT | Major disaster | Severe Winter Storm and Snowstorm | Winter Weather | former Hartford County total, not this region: $6,302,161.76 | ||
| 2013-02-10 | 2013-02-08 | EM-3361-CT | Emergency | Severe Winter Storm | Winter Weather | same incident as DR-4106; former Tolland County total, not this region: no Public Assistance recorded | ||
| 2013-02-10 | 2013-02-08 | EM-3361-CT | Emergency | Severe Winter Storm | Winter Weather | same incident as DR-4106; former Hartford County total, not this region: no Public Assistance recorded | ||
| 2012-10-30 | 2012-10-27 | DR-4087-CT | Major disaster | Hurricane Sandy | Hurricane | former Tolland County total, not this region: $718,087.61 | ||
| 2012-10-28 | 2012-10-27 | EM-3353-CT | Emergency | Hurricane Sandy | Hurricane | same incident as DR-4087; former Tolland County total, not this region: no Public Assistance recorded | ||
| 2012-10-28 | 2012-10-27 | EM-3353-CT | Emergency | Hurricane Sandy | Hurricane | same incident as DR-4087; former Hartford County total, not this region: no Public Assistance recorded | ||
| 2011-11-17 | 2011-10-29 | DR-4046-CT | Major disaster | Severe Storm | Hazard not mapped (severe storm title names no single hazard); not counted | former Tolland County total, not this region: $5,505,224.23 | ||
| 2011-11-17 | 2011-10-29 | DR-4046-CT | Major disaster | Severe Storm | Hazard not mapped (severe storm title names no single hazard); not counted | former Hartford County total, not this region: $53,170,466.89 | ||
| 2011-10-31 | 2011-10-29 | EM-3342-CT | Emergency | Severe Storm | Hazard not mapped (severe storm title names no single hazard); not counted | same incident as DR-4046; former Tolland County total, not this region: no Public Assistance recorded | ||
| 2011-10-31 | 2011-10-29 | EM-3342-CT | Emergency | Severe Storm | Hazard not mapped (severe storm title names no single hazard); not counted | same incident as DR-4046; former Hartford County total, not this region: no Public Assistance recorded | ||
| 2011-09-02 | 2011-08-27 | DR-4023-CT | Major disaster | Tropical Storm Irene | Hurricane | former Tolland County total, not this region: $854,246.46 | ||
| 2011-09-02 | 2011-08-27 | DR-4023-CT | Major disaster | Tropical Storm Irene | Hurricane | former Hartford County total, not this region: $3,054,462.82 | ||
| 2011-08-27 | 2011-08-26 | EM-3331-CT | Emergency | Hurricane Irene | Hurricane | same incident as DR-4023; former Tolland County total, not this region: no Public Assistance recorded | ||
| 2011-08-27 | 2011-08-26 | EM-3331-CT | Emergency | Hurricane Irene | Hurricane | same incident as DR-4023; former Hartford County total, not this region: no Public Assistance recorded | ||
| 2011-03-03 | 2011-01-11 | DR-1958-CT | Major disaster | Snowstorm | Winter Weather | former Tolland County total, not this region: $738,463.69 | ||
| 2011-03-03 | 2011-01-11 | DR-1958-CT | Major disaster | Snowstorm | Winter Weather | former Hartford County total, not this region: $2,447,144.38 | ||
| 2007-05-11 | 2007-04-15 | DR-1700-CT | Major disaster | Severe Storms and Flooding | Inland Flooding | former Hartford County total, not this region: $7,038.21; FEMA's declaration record does not list Public Assistance, but FEMA's PA project summaries show obligations for former Hartford County | ||
| 2006-05-02 | 2006-02-11 | EM-3266-CT | Emergency | Snow | Winter Weather | former Tolland County total, not this region: $394,792.07 | ||
| 2006-05-02 | 2006-02-11 | EM-3266-CT | Emergency | Snow | Winter Weather | former Hartford County total, not this region: $2,113,978.03 | ||
| 2005-12-16 | 2005-10-14 | DR-1619-CT | Major disaster | Severe Storms and Flooding | Inland Flooding | former Tolland County total, not this region: $571,145.86 | ||
| 2005-12-16 | 2005-10-14 | DR-1619-CT | Major disaster | Severe Storms and Flooding | Inland Flooding | former Hartford County total, not this region: $1,315,927.95 | ||
| 2005-09-13 | 2005-08-29 | EM-3246-CT | Emergency | Hurricane Katrina Evacuation | Hurricane: evacuation support, not a local hazard event; not counted | former Tolland County total, not this region: no Public Assistance recorded | ||
| 2005-09-13 | 2005-08-29 | EM-3246-CT | Emergency | Hurricane Katrina Evacuation | Hurricane: evacuation support, not a local hazard event; not counted | former Hartford County total, not this region: $5,105 | ||
| 2005-02-17 | 2005-01-22 | EM-3200-CT | Emergency | Record Snow | Winter Weather | former Tolland County total, not this region: $489,774.62 | ||
| 2005-02-17 | 2005-01-22 | EM-3200-CT | Emergency | Record Snow | Winter Weather | former Hartford County total, not this region: $2,044,215.99 | ||
| 2004-01-15 | 2003-12-05 | EM-3192-CT | Emergency | Snow | Winter Weather | former Tolland County total, not this region: $387,289.09 | ||
| 2004-01-15 | 2003-12-05 | EM-3192-CT | Emergency | Snow | Winter Weather | former Hartford County total, not this region: $1,750,344.21 | ||
| 2003-03-11 | 2003-02-17 | EM-3176-CT | Emergency | Snow | Winter Weather | former Tolland County total, not this region: $345,444.94 | ||
| 2003-03-11 | 2003-02-17 | EM-3176-CT | Emergency | Snow | Winter Weather | former Hartford County total, not this region: $1,460,176.08 | ||
| 1999-09-23 | 1999-09-16 | DR-1302-CT | Major disaster | Hurricane Floyd | Hurricane | former Hartford County total, not this region: $391,123.82 | ||
| 1996-01-24 | 1996-01-07 | DR-1092-CT | Major disaster | Blizzard 0F 96 | Winter Weather | former Tolland County total, not this region: no Public Assistance recorded | ||
| 1996-01-24 | 1996-01-07 | DR-1092-CT | Major disaster | Blizzard 0F 96 | Winter Weather | former Hartford County total, not this region: no Public Assistance recorded | ||
| 1993-03-16 | 1993-03-13 | EM-3098-CT | Emergency | Severe Winds & Blizzard, Record Snowfall | Winter Weather | former Tolland County total, not this region: no Public Assistance recorded | ||
| 1993-03-16 | 1993-03-13 | EM-3098-CT | Emergency | Severe Winds & Blizzard, Record Snowfall | Winter Weather | former Hartford County total, not this region: no Public Assistance recorded | ||
| 1991-08-30 | 1991-08-19 | DR-916-CT | Major disaster | Hurricane Bob | Hurricane | former Tolland County total, not this region: no Public Assistance recorded | ||
| 1991-08-30 | 1991-08-19 | DR-916-CT | Major disaster | Hurricane Bob | Hurricane | former Hartford County total, not this region: no Public Assistance recorded | ||
| 1985-10-11 | 1985-09-27 | DR-747-CT | Major disaster | Hurricane Gloria | Hurricane | former Tolland County total, not this region: no Public Assistance recorded | ||
| 1985-10-11 | 1985-09-27 | DR-747-CT | Major disaster | Hurricane Gloria | Hurricane | former Hartford County total, not this region: no Public Assistance recorded | ||
| 1984-06-18 | 1984-05-27 | DR-711-CT | Major disaster | Severe Storms & Flooding | Inland Flooding | former Tolland County total, not this region: no Public Assistance recorded | ||
| 1984-06-18 | 1984-05-27 | DR-711-CT | Major disaster | Severe Storms & Flooding | Inland Flooding | former Hartford County total, not this region: no Public Assistance recorded | ||
| 1982-06-14 | 1982-06-14 | DR-661-CT | Major disaster | Severe Storms & Flooding | Inland Flooding | former Tolland County total, not this region: no Public Assistance recorded | ||
| 1982-06-14 | 1982-06-14 | DR-661-CT | Major disaster | Severe Storms & Flooding | Inland Flooding | former Hartford County total, not this region: no Public Assistance recorded | ||
| 1979-10-04 | 1979-10-04 | DR-608-CT | Major disaster | Tornado & Severe Storms | Tornado | former Hartford County total, not this region: no Public Assistance recorded | ||
| 1978-02-07 | 1978-02-07 | EM-3060-CT | Emergency | Blizzard & Snowstorms | Winter Weather | former Tolland County total, not this region: no Public Assistance recorded | ||
| 1978-02-07 | 1978-02-07 | EM-3060-CT | Emergency | Blizzard & Snowstorms | Winter Weather | former Hartford County total, not this region: no Public Assistance recorded |
Old-county PA is never summed into a region total.
County Public Assistance: applicants the FEMA record places in this county, including any state agencies FEMA files there; statewide rows are listed on the state page; federal share obligated, nominal dollars.
Statewide declarations
Source: 2
| Declared | Incident began | FEMA number | Type | Title | Mapped hazard |
|---|---|---|---|---|---|
| 1955-08-20 | 1955-08-20 | DR-42-CT | Major disaster | Hurricane, Torrential Rain & Floods | Hurricane (primary); also designated: Inland Flooding |
| 1954-09-17 | 1954-09-17 | DR-25-CT | Major disaster | Hurricanes | Hurricane (primary); also designated: Inland Flooding |
FEMA recorded these with designated area Statewide and no county, so they are listed on every county page in the state and not counted with county rows. Local data needed: whether each one affected this county.
Previous occurrences by hazard, with explicit no-event rows
Sources: 2, 6, 7
| Hazard | Storm Events records, all years on file(years in the Period column) | Since plan approvalrecords | In the 12 months before plan approvalrecords | Last 5 yearsrecords | Declared incidents, all yearsseparate disasters | Declared since approvalseparate disasters | Period | Statement |
|---|---|---|---|---|---|---|---|---|
| Coastal Flooding | 0 | 0 | 0 | 1996 to 2026-06-30 | No recorded events, 1996 to 2026-06-30, NOAA NCEI Storm Events | |||
| Cold Wave | 7 | 0 | 0 | 1996 to 2026-06-30 | ||||
| Drought | 9 | 0 | 0 | 1996 to 2026-06-30 | ||||
| Earthquake | 0 | 0 | 0 | Storm Events does not record earthquakes; the USGS earthquake catalog is the source. | ||||
| Hail | 227 | 12 | 0 | 1955 to 2026-06-30 | ||||
| Heat Wave | 25 | 0 | 0 | 1996 to 2026-06-30 | ||||
| Hurricane | 4 | 0 | 7 | 1996 to 2026-06-30 | ||||
| Ice Storm | 4 | 0 | 0 | 1996 to 2026-06-30 | ||||
| Inland Flooding | 202 | 41 | 4 | 1996 to 2026-06-30 | ||||
| Landslide | 0 | 0 | 0 | 1996 to 2026-06-30 | No recorded events, 1996 to 2026-06-30, NOAA NCEI Storm Events | |||
| Lightning | 41 | 5 | 0 | 1996 to 2026-06-30 | ||||
| Strong Wind | 742 | 114 | 0 | 1955 to 2026-06-30 | Includes 36 High Wind and 56 Strong Wind records. | |||
| Tornado | 33 | 0 | 1 | 1950 to 2026-06-30 | ||||
| Tsunami | 0 | 0 | 0 | 1996 to 2026-06-30 | No recorded events, 1996 to 2026-06-30, NOAA NCEI Storm Events | |||
| Wildfire | 0 | 0 | 1 | 1996 to 2026-06-30 | No Storm Events records of this type; 1 federal declared incident (see declarations table) | |||
| Winter Weather | 136 | 9 | 10 | 1996 to 2026-06-30 |
Notable Storm Events records
Sources: 1, 6, 7
| Date | Event type | Magnitude or extent | Damagenominal dollars | Deaths, injuriesdirect only | Location | Why listed |
|---|---|---|---|---|---|---|
| 2019-01-21 | Extreme Cold/Wind Chill | $0 property; $0 crops (zone total, 2019 dollars) | 0, 0 | NWS zone CTZ002 (HARTFORD), zone-level | B1-c worst recorded: Cold/Wind Chill, Extreme Cold/Wind Chill | |
| 2017-03-22 | Strong Wind | 43 kt (49 mph) estimated gust | $7,000 property; $0 crops (zone total, 2017 dollars) | 1, 1 | NWS zone CTZ002 (HARTFORD), zone-level | deaths or injuries recorded |
| 2012-10-29 | High Wind | 62 kt (71 mph) measured gust | $1,200,000 property; $0 crops (zone total, 2012 dollars) | 0, 0 | NWS zone CTZ002 (HARTFORD), zone-level | B1-c worst recorded: High Wind and Strong Wind |
| 2012-08-10 | Thunderstorm Wind | 87 kt (100 mph) estimated gust | $100,000 property; $0 crops (2012 dollars) | 0, 0 | EAST GLASTONBURG (former Hartford County record) | B1-c worst recorded: Thunderstorm Wind |
| 2011-08-28 | Flood | $8,000,000 property; $0 crops (2011 dollars) | 1, 0 | BRISTOL to FORESTVILLE (former Hartford County record) | B1-c worst recorded: Flash Flood, Flood, Lakeshore Flood | |
| 2011-08-28 | Tropical Storm | $20,000,000 property; $0 crops (zone total, 2011 dollars) | 0, 0 | NWS zone CTZ003 (TOLLAND), zone-level | B1-c worst recorded: Hurricane, Tropical Storm, Tropical Depression | |
| 2010-07-16 | Lightning | $75,000 property; $0 crops (2010 dollars) | 0, 0 | VERNON (former Tolland County record) | B1-c worst recorded: Lightning | |
| 2002-11-16 | Ice Storm | $2,000,000 property; crops not reported (zone total, 2002 dollars) | 0, 0 | NWS zone CTZ002 (HARTFORD), zone-level | B1-c worst recorded: Ice Storm | |
| 1999-09-07 | Heat | damage not reported | 0, 0 | NWS zone CTZ002 (HARTFORD), zone-level | B1-c worst recorded: Excessive Heat, Heat | |
| 1996-02-25 | High Wind | 57 kt (66 mph), measurement type not recorded | $500,000 property; crops not reported (zone total, 1996 dollars) | 2, 3 | NWS zone CTZ002 (HARTFORD), zone-level | deaths or injuries recorded |
| 1995-06-20 | Hail | 2.75 in | damage not recorded (pre-1996 record) | 0, 0 | Vernon (former Tolland County record) | B1-c worst recorded: Hail |
| 1979-10-03 | Tornado | F4, 11.3 mi path length (whole path, pre-1996), 1,400 yd wide | $250,000,000 property; crops not recorded (1979 dollars) | 3, 500 | location not recorded (former Hartford County record) | deaths or injuries recorded |
The full list is in the Excel file, sheet "B1-d Storm Events history" (1,430 rows).
Location is the place NOAA recorded, as written in its data; it need not be a jurisdiction in this plan.
Local data needed: state-declared emergencies, from your state emergency management agency (federal data do not include them).
Tribal and special-area declarations in this state are listed on the state page.
Supports FEMA checklist item B1-e: probability of future events
Probability: FEMA annualized frequency and descriptor per hazard
Sources: 5, 6
| Hazard | FEMA annualized frequency (modeled)unit per row | Unit | In plain terms | Descriptor | Descriptor basis | NRI events or days in its record period (hail, wind and tornado are area-weighted, so can be fractional) | NRI period | Location | Note |
|---|---|---|---|---|---|---|---|---|---|
| Coastal Flooding | 3.69 | events per year at a location (modeled) | about 3.7 per year at a given location in the county | Highly likely | FEMA annualized frequency (modeled) | not shown | modeled | see B1-f | Descriptor from NRI: the rate at a location is 1 or more a year, so the county rate is at least that. |
| Cold Wave | 1.74 | event-days per year | about 1.74 days per year | Likely | Storm Events event-days in 4 of 30 years, 1996 to 2025 (13.3%) | 33.1 | 2005-11-12 to 2024-11-12 (19 years) | countywide | |
| Drought | 3.47 | event-days per year | about 3.47 days per year | Likely | Storm Events event-days in 3 of 30 years, 1996 to 2025 (10%) | 140 | 2000 to 2025 (25.25 years; D3 and D4 only) | countywide | |
| Earthquake | 0.00142 | annual probability at a location | chance a given location in the county has at least minor-damage shaking in a year: 0.142% | not shown | modeled | see B1-f | No descriptor (Storm Events does not record earthquakes). | ||
| Hail | 2.56 | events per year | about 2.56 per year | Highly likely | FEMA annualized frequency (modeled) | 97.1 (modeled) | 1986 to 2023 (38 years) | countywide | |
| Heat Wave | 6.67 | event-days per year | about 6.67 days per year | Likely | Storm Events event-days in 8 of 30 years, 1996 to 2025 (26.7%) | 113 | 2005-11-12 to 2024-11-12 (19 years) | countywide | |
| Hurricane | 0.15 | events per year | about 1 in 7 years | Likely | FEMA annualized frequency (modeled) | 58 | 1851 to 2024 (Atlantic) | see B1-f | NRI counts hurricane and tropical storm tracks passing within storm-force wind range; federal declarations are in B1-d. |
| Ice Storm | 2.5 | event-days per year | about 2.5 days per year | Likely | Storm Events event-days in 4 of 30 years, 1996 to 2025 (13.3%) | 169 | 1946-12-31 to 2014-02-12 (67 years) | countywide | |
| Inland Flooding | 3.54 | event-days per year | about 3.54 days per year | Highly likely | Storm Events event-days in 27 of 30 years, 1996 to 2025 (90%) | 99 | 1996 to 2023 (28 years) | see B1-f | |
| Landslide | 0.805 | events per year (modeled) | about 0.8 per year | Likely | FEMA annualized frequency (modeled) | not shown | modeled | see B1-f | |
| Lightning | 26.5 | days per year with a strike | about 26.5 days per year | Highly likely | FEMA annualized frequency (modeled) | not shown | 1995 to 2023 (29 years; CONUS) | countywide | |
| Strong Wind | 2.23 | events per year | about 2.23 per year | Highly likely | FEMA annualized frequency (modeled) | 85 | 1986 to 2023 (38 years) | countywide | |
| Tornado | 0.328 | events per year | about 1 in 3 years | Likely | FEMA annualized frequency (modeled) | not shown | 1950 to 2023 (EF2+); 1986 to 2023 (EF0-1) | see B1-f | |
| Tsunami | annual probability at the most exposed location (used in place of a county value) | Storm Events records in 0 of 30 years, 1996 to 2025 (0%) | not shown | modeled | see B1-f | No descriptor: no Storm Events record 1996 to 2025 | |||
| Wildfire | 0.000079 | annual probability at a location | chance a given location in the county burns in a year: 0.0079% | Storm Events records in 0 of 30 years, 1996 to 2025 (0%) | not shown | modeled | see B1-f | No descriptor: no Storm Events record 1996 to 2025 | |
| Winter Weather | 15.9 | event-days per year | about 15.9 days per year | Highly likely | Storm Events event-days in 29 of 30 years, 1996 to 2025 (96.7%) | 302 | 2005-11-12 to 2024-11-12 (19 years) | countywide |
FEMA annualized frequency (modeled) is the National Risk Index v1.20 (December 2025) estimate of how often a hazard affects this county in a year; it is not recorded events divided by years, and its unit differs by hazard (events, event-days, or days with a lightning strike per year). For earthquake, wildfire, coastal flooding and tsunami the value is the chance (or number of events) at a location in the county, not across the county, so no "1 in N years" is given and the descriptor comes from Storm Events where it has a record (none for earthquake). The Methods page gives each hazard's method, from FEMA's National Risk Index Technical Documentation v1.20.
Where NRI gives event-days, the descriptor comes from the share of years with a Storm Events record; NRI's source records more events, so the two differ.
Descriptor scale used in this packet (defined per unit)
Sources: 5, 6
| Unit | Descriptor | Definition |
|---|---|---|
| events per year | Highly likely | 1 or more per year |
| events per year | Likely | about once in 1 to 10 years |
| events per year | Possible | about once in 10 to 100 years |
| events per year | Unlikely | less than once in 100 years |
| annual probability | Likely | 10% to under 100% chance in a given year |
| annual probability | Possible | 1% to under 10% chance in a given year |
| annual probability | Unlikely | under 1% chance in a given year |
| event-days (share of years) | Highly likely | event-days recorded in 90% or more of years |
| event-days (share of years) | Likely | event-days recorded in 10% to under 90% of years |
| event-days (share of years) | Possible | event-days recorded in some years but under 10% of years |
| lightning strike-days | Highly likely | cloud-to-ground strikes on 1 or more days per year |
Intensity bands: historical frequency (Storm Events)
Source: 6
| Hazard | Band | Years | Eventscounty-coded records | Years in period | Events per yearevents / years |
|---|---|---|---|---|---|
| Hail | 1.00-1.99 in | 1996 to 2025 | 70 | 30 | 2.33 |
| Hail | 2.00 in+ | 1996 to 2025 | 2 | 30 | 0.0667 |
| Thunderstorm Wind (counted as NRI Strong Wind) | 50-64 kt | 1996 to 2025 | 522 | 30 | 17.4 |
| Thunderstorm Wind (counted as NRI Strong Wind) | 65 kt+ | 1996 to 2025 | 7 | 30 | 0.233 |
| Thunderstorm Wind (counted as NRI Strong Wind) | unmeasured or below 50 kt | 1996 to 2025 | 13 | 30 | 0.433 |
| Tornado | EF0-1 | 1996 to 2025 | 12 | 30 | 0.4 |
| Tornado | EF2-3 | 1996 to 2025 | 0 | 30 | 0 |
| Tornado | EF4-5 | 1996 to 2025 | 0 | 30 | 0 |
| Tornado | unrated (EFU) | 1996 to 2025 | 0 | 30 | 0 |
The bands show how often events of each severity were recorded in this county, to profile how severe events have been (FEMA's probability item asks for the range of intensities).
Hail smaller than 1 inch is not counted: on 2010-01-05 the National Weather Service raised its severe-hail threshold from 3/4 inch to 1 inch, so smaller reports became less common after 2009 (NWS Service Change Notice 09-52). NRI hail frequency uses a 0.75 inch threshold.
Optional: future conditions. Not a required item in the 2025 FEMA Local Mitigation Planning Policy Guide; some states ask for it. The federal Climate Mapping for Resilience and Adaptation (CMRA) site gives county exposure to future climate conditions (https://resilience.climate.gov/).
Supports FEMA checklist item B1-f: hazards that vary across jurisdictions
Range of census tract risk within the county
Source: 5
| Hazard | Tractsrated of all | NRI risk score, 0 to 100 | Tracts by rating | ||
|---|---|---|---|---|---|
| Min | Median | Max | |||
| Coastal Flooding | 19 of 249 | 69.8 | 73.1 | 84.7 | Relatively Low 4, Very Low 15, No Rating 199, Not Applicable 31 |
| Cold Wave | 249 of 249 | 15.6 | 46.1 | 71.0 | Relatively Moderate 115, Relatively Low 131, Very Low 3 |
| Drought | 101 of 249 | 67.0 | 75.7 | 90.1 | Relatively Low 34, Very Low 67, No Rating 148 |
| Earthquake | 248 of 249 | 18.4 | 50.3 | 83.8 | Relatively Moderate 9, Relatively Low 182, Very Low 57, No Rating 1 |
| Hail | 249 of 249 | 0.5 | 38.9 | 61.7 | Relatively Low 138, Very Low 111 |
| Heat Wave | 249 of 249 | 1.5 | 43.1 | 74.9 | Relatively Moderate 44, Relatively Low 199, Very Low 6 |
| Hurricane | 249 of 249 | 15.6 | 68.9 | 82.8 | Relatively Moderate 18, Relatively Low 228, Very Low 3 |
| Ice Storm | 248 of 249 | 8.3 | 59.6 | 85.3 | Relatively Moderate 53, Relatively Low 187, Very Low 8, No Rating 1 |
| Inland Flooding | 249 of 249 | 0.1 | 67.4 | 99.1 | Very High 5, Relatively High 67, Relatively Moderate 106, Relatively Low 60, Very Low 11 |
| Landslide | 246 of 249 | 10.9 | 58.1 | 96.4 | Relatively Moderate 1, Relatively Low 47, Very Low 198, No Rating 3 |
| Lightning | 248 of 249 | 0.4 | 29.8 | 57.0 | Relatively Moderate 6, Relatively Low 209, Very Low 33, No Rating 1 |
| Strong Wind | 249 of 249 | 0.2 | 25.6 | 47.7 | Relatively Low 201, Very Low 48 |
| Tornado | 249 of 249 | 0.2 | 36.2 | 56.6 | Relatively Moderate 5, Relatively Low 212, Very Low 32 |
| Tsunami | 0 of 249 | Not Applicable 248, Insufficient Data 1 | |||
| Wildfire | 221 of 249 | 19.0 | 39.7 | 76.0 | Relatively Low 12, Very Low 209, No Rating 28 |
| Winter Weather | 249 of 249 | 10.6 | 34.2 | 51.9 | Relatively Moderate 7, Relatively Low 239, Very Low 3 |
Drought: Agriculture is all of NRI's expected annual loss for this hazard in the county, so the tract range mostly reflects where crop and livestock value is.
Rated tracts only: No Rating (score 0.0), Not Applicable and Insufficient Data tracts are counted but not used for the minimum, median and maximum.
The score ranks a tract against all U.S. tracts (100 = highest). The rating is FEMA's category for the tract's risk value, computed differently, so the two can disagree.
Frequency data for cold wave, drought, hail, heat wave, ice storm, lightning, strong wind and winter weather are county-wide or coarse (49 km grid or NWS zone), the same for every jurisdiction; the tract range mostly reflects where buildings and people are (crop and livestock value where a line above names agriculture).
Each jurisdiction (starting figures from federal data)
Sources: 1, 3, 4, 6
| Jurisdiction | Type | Plan status | Repetitive lossFMA RL and SRL (44 CFR 77.2); repeat-flood, any definition | Public Assistance to this jurisdictionFEMA records matched by applicant name; federal share obligated, nominal dollars | Event records naming this placeall years; since its plan | Notes |
|---|---|---|---|---|---|---|
| Hartford city | City | Approved, expires 2029-08-20 | FMA RL 0, SRL 1; any 3 | $10,468,386.35 | 70 total; 0 since its plan | Includes $6,898,970.13 for declarations not counted as hazard incidents (DR-4046-CT, DR-4500-CT). |
| New Britain city | City | Approved, expires 2029-08-20 | FMA RL 0, SRL 0; any 16 | $1,667,118.92 | 30 total; 2 since its plan | Includes $595,122.17 for declarations not counted as hazard incidents (DR-4046-CT, DR-4500-CT). |
| Andover town | Town | Approved, expires 2029-08-20 | FMA RL 0, SRL 0; any 0 | $153,628.10 | 11 total; 0 since its plan | Includes $9,154.24 for declarations not counted as hazard incidents (DR-4046-CT). |
| Avon town | Town | Approved, expires 2029-08-20 | FMA RL 0, SRL 0; any 3 | $2,372,532.60 | 18 total; 0 since its plan | Includes $1,856,617.33 for declarations not counted as hazard incidents (DR-4046-CT, DR-4500-CT). |
| Berlin town | Town | Approved, expires 2029-08-20 | FMA RL 0, SRL 1; any 5 | $1,880,186.09 | 9 total; 0 since its plan | Includes $670,099.78 for declarations not counted as hazard incidents (DR-4046-CT, DR-4500-CT). |
| Bloomfield town | Town | Approved, expires 2029-08-20 | FMA RL 0, SRL 0; any 5 | $2,651,621.44 | 11 total; 0 since its plan | Includes $2,233,792.71 for declarations not counted as hazard incidents (DR-4046-CT, DR-4500-CT, EM-3246-CT). |
| Bolton town | Town | Approved, expires 2029-08-20 | FMA RL 0, SRL 0; any 0 | $375,217.49 | 7 total; 0 since its plan | Includes $97,633.56 for declarations not counted as hazard incidents (DR-4046-CT). |
| Canton town | Town | Approved, expires 2029-08-20 | FMA RL 0, SRL 0; any 6 | $679,130.57 | 19 total; 1 since its plan | Includes $327,419.78 for declarations not counted as hazard incidents (DR-4046-CT, DR-4500-CT). |
| Columbia town | Town | Approved, expires 2029-08-20 | FMA RL 0, SRL 0; any 1 | $125,566.55 | 8 total; 0 since its plan | Includes $32,648.65 for declarations not counted as hazard incidents (DR-4046-CT, DR-4500-CT). |
| Coventry town | Town | Approved, expires 2029-08-20 | FMA RL 0, SRL 0; any 0 | $624,307.09 | 13 total; 0 since its plan | Includes $58,495.62 for declarations not counted as hazard incidents (DR-4046-CT, DR-4500-CT). |
| East Granby town | Town | Approved, expires 2029-08-20 | FMA RL 0, SRL 0; any 0 | $589,169.38 | 6 total; 0 since its plan | Includes $428,693.43 for declarations not counted as hazard incidents (DR-4046-CT, DR-4500-CT). |
| East Hartford town | Town | Approved, expires 2029-08-20 | FMA RL 0, SRL 1; any 5 | $3,519,106.74 | 9 total; 0 since its plan | Includes $1,591,100.11 for declarations not counted as hazard incidents (DR-4046-CT, DR-4500-CT). |
| East Windsor town | Town | Approved, expires 2029-08-20 | FMA RL 0, SRL 0; any 0 | $461,943.53 | 10 total; 0 since its plan | Includes $250,349.07 for declarations not counted as hazard incidents (DR-4046-CT, DR-4500-CT). |
| Ellington town | Town | Approved, expires 2029-08-20 | FMA RL 0, SRL 0; any 0 | $1,000,659.73 | 30 total; 0 since its plan | Includes $492,942.27 for declarations not counted as hazard incidents (DR-4046-CT, DR-4500-CT). |
| Enfield town | Town | Approved, expires 2029-08-20 | FMA RL 0, SRL 1; any 7 | $5,269,765.66 | 43 total; 2 since its plan | Includes $4,384,837.74 for declarations not counted as hazard incidents (DR-4046-CT, DR-4500-CT). |
| Farmington town | Town | Approved, expires 2029-08-20 | FMA RL 1, SRL 1; any 5 | $2,595,741.36 | 16 total; 1 since its plan | Includes $1,738,130.75 for declarations not counted as hazard incidents (DR-4046-CT, DR-4500-CT). |
| Glastonbury town | Town | Approved, expires 2029-08-20 | FMA RL 0, SRL 0; any 0 | $3,219,507.60 | 13 total; 0 since its plan | Includes $1,937,474.09 for declarations not counted as hazard incidents (DR-4046-CT, DR-4500-CT). |
| Granby town | Town | Approved, expires 2029-08-20 | FMA RL 0, SRL 0; any 1 | $1,756,668.03 | 24 total; 1 since its plan | Includes $1,490,929.57 for declarations not counted as hazard incidents (DR-4046-CT, DR-4500-CT). |
| Hebron town | Town | Approved, expires 2029-08-20 | FMA RL 0, SRL 0; any 0 | $334,098.23 | 0 total; 0 since its plan | Includes $24,239.80 for declarations not counted as hazard incidents (DR-4046-CT, DR-4500-CT). |
| Manchester town | Town | Approved, expires 2029-08-20 | FMA RL 0, SRL 0; any 1 | $5,330,849.06 | 34 total; 0 since its plan | Includes $4,236,367 for declarations not counted as hazard incidents (DR-4046-CT, DR-4500-CT). |
| Mansfield town | Town | Approved, expires 2029-08-20 | FMA RL 1, SRL 2; any 3 | $566,533.55 | 10 total; 0 since its plan | Includes $71,616.80 for declarations not counted as hazard incidents (DR-4046-CT, DR-4500-CT). |
| Marlborough town | Town | Approved, expires 2029-08-20 | FMA RL 0, SRL 0; any 1 | $311,538.69 | 8 total; 0 since its plan | Includes $58,821.62 for declarations not counted as hazard incidents (DR-4046-CT). |
| Newington town | Town | Approved, expires 2029-08-20 | FMA RL 0, SRL 1; any 5 | $2,496,361.40 | 22 total; 1 since its plan | Includes $1,567,085.49 for declarations not counted as hazard incidents (DR-4046-CT, DR-4500-CT). |
| Plainville town | Town | Approved, expires 2029-08-20 | FMA RL 0, SRL 2; any 3 | $892,998.26 | 1 total; 0 since its plan | Includes $371,550.13 for declarations not counted as hazard incidents (DR-4046-CT). |
| Rocky Hill town | Town | Approved, expires 2029-08-20 | FMA RL 0, SRL 0; any 1 | $1,512,747.03 | 6 total; 0 since its plan | Includes $572,185.49 for declarations not counted as hazard incidents (DR-4046-CT, DR-4500-CT). |
| Simsbury town | Town | Approved, expires 2029-08-20 | FMA RL 0, SRL 1; any 11 | $3,346,555.15 | 27 total; 1 since its plan | Includes $2,829,771.70 for declarations not counted as hazard incidents (DR-4046-CT, DR-4500-CT). |
| Somers town | Town | Approved, expires 2029-08-20 | FMA RL 0, SRL 0; any 0 | $1,408,366.65 | 16 total; 0 since its plan | Includes $1,010,698.02 for declarations not counted as hazard incidents (DR-4046-CT, DR-4500-CT). |
| South Windsor town | Town | Approved, expires 2029-08-20 | FMA RL 0, SRL 1; any 2 | $6,613,933.95 | 20 total; 1 since its plan | Includes $5,673,222.39 for declarations not counted as hazard incidents (DR-4046-CT, DR-4500-CT). |
| Southington town | Town | Approved, expires 2029-08-20 | FMA RL 0, SRL 1; any 11 | $1,834,143.40 | 32 total; 0 since its plan | Includes $841,681.81 for declarations not counted as hazard incidents (DR-4046-CT, DR-4500-CT). |
| Stafford town | Town | Approved, expires 2029-08-20 | FMA RL 0, SRL 0; any 0 | $654,971.61 | 6 total; 0 since its plan | Includes $121,299.84 for declarations not counted as hazard incidents (DR-4046-CT, DR-4500-CT). |
| Suffield town | Town | Approved, expires 2029-08-20 | FMA RL 0, SRL 0; any 1 | $1,371,429.62 | 21 total; 1 since its plan | Includes $995,731.67 for declarations not counted as hazard incidents (DR-4046-CT). |
| Tolland town | Town | Approved, expires 2029-08-20 | FMA RL 0, SRL 0; any 1 | $1,651,429.04 | 38 total; 0 since its plan | Includes $683,034.11 for declarations not counted as hazard incidents (DR-4046-CT, DR-4500-CT). |
| Vernon town | Town | Approved, expires 2029-08-20 | FMA RL 0, SRL 1; any 3 | $4,987,409.90 | 26 total; 0 since its plan | Includes $4,185,817.21 for declarations not counted as hazard incidents (DR-4046-CT, DR-4500-CT). |
| West Hartford town | Town | Approved, expires 2029-08-20 | FMA RL 0, SRL 4; any 26 | $10,191,131.59 | 23 total; 0 since its plan | Includes $8,369,499.51 for declarations not counted as hazard incidents (DR-4046-CT, DR-4500-CT). |
| Wethersfield town | Town | Approved, expires 2029-08-20 | FMA RL 0, SRL 0; any 7 | $2,009,284.82 | 18 total; 1 since its plan | Includes $826,034.13 for declarations not counted as hazard incidents (DR-4046-CT). |
| Willington town | Town | Approved, expires 2029-08-20 | FMA RL 0, SRL 0; any 0 | $491,838.80 | 1 total; 0 since its plan | Includes $161,691.42 for declarations not counted as hazard incidents (DR-4046-CT, DR-4500-CT). |
| Windsor Locks town | Town | Approved, expires 2029-08-20 | FMA RL 0, SRL 0; any 1 | $1,628,411.54 | 8 total; 0 since its plan | Includes $1,237,964.47 for declarations not counted as hazard incidents (DR-4046-CT, DR-4500-CT). |
| Windsor town | Town | Approved, expires 2029-08-20 | FMA RL 0, SRL 0; any 2 | $1,328,447.11 | 26 total; 0 since its plan | Includes $851,889.48 for declarations not counted as hazard incidents (DR-4046-CT, DR-4500-CT). |
Repetitive-loss counts are for whole NFIP communities, which can extend beyond this county (see the note in B2-c).
School districts and special districts get a plan clock row only.
Supports FEMA checklist items B2-a and B2-b: vulnerability and potential impacts
Local data needed
The table below gives county-level starting figures; the plan describes impacts for each jurisdiction and its own assets.
Connecticut planning regions have no county-level plan in FEMA data; see each town's plan dates in the region.
- Critical facilities and lifelines per hazard
- A problem statement per jurisdiction per hazard
- Changes in development in hazard-prone areas since the last approval, or a statement of none (E1-a)
- Future assets
County-level starter: exposure, expected annual loss and damage since the plan
Sources: 1, 2, 3, 5, 6, 7
| Hazard | Building exposuremodeled dollars | Agriculture exposuremodeled dollars | Population exposedpeople | EAL buildingsmodeled dollars per year | EAL agriculturemodeled dollars per year | Cost of expected deaths and injuriesFEMA's dollar value per year, not property damage | EAL as % of exposurebuildings; agriculture where noted | Storm Events damage since plancounty-coded records, property plus crops, nominal dollars | Zone-level damage since planproperty plus crops, reported for the zone | Public Assistance since plannominal dollars; see note | Note |
|---|---|---|---|---|---|---|---|---|---|---|---|
| Coastal Flooding | $429,546,876 | n/a | 1,325 | $13,196 | n/a | $748 | 0.00307% | ||||
| Cold Wave | $211,333,470,818 | $188,125,761 | 975,267 | $2,437 | $29,120 | $12,075,070 | under 0.0001% | ||||
| Drought | n/a | $146,018,641 | n/a | n/a | $192,586 | n/a | 0.132% (agriculture) | NRI has no building exposure for this hazard; agriculture shown | |||
| Earthquake | $369,767,980,870 | n/a | 976,248 | $8,367,569 | n/a | $2,351,068 | 0.00226% | ||||
| Hail | $211,333,505,302 | $188,125,761 | 975,267 | $983,463 | $47,946 | $31,704 | 0.000465% | ||||
| Heat Wave | $211,333,470,818 | $188,125,761 | 975,267 | $42 | $28,811 | $8,690,086 | under 0.0001% | ||||
| Hurricane | $211,321,328,775 | $188,125,761 | 975,224 | $13,670,746 | $1,167,073 | $479,484 | 0.00647% | ||||
| Ice Storm | $211,331,500,912 | n/a | 975,253 | $1,486,608 | n/a | $471,813 | 0.000703% | ||||
| Inland Flooding | $211,139,646,073 | $29,632,699 | 15,491 | $240,406,041 | $5,680 | $82,269 | n/a (see note) | NRI counts the full building value of any census block with some flood loss; this is not the value of buildings in the floodplain. Use local FIRM overlays for B2-a/B2-b. | |||
| Landslide | $4,588,075,092 | n/a | 20,328 | $40,121 | n/a | $3,972 | 0.000874% | ||||
| Lightning | $211,333,505,302 | n/a | 975,267 | $96,662 | n/a | $1,382,130 | under 0.0001% | ||||
| Strong Wind | $211,333,505,302 | $188,125,761 | 975,267 | $273,851 | $3,595 | $1,363,200 | 0.00013% | ||||
| Tornado | $211,333,505,302 | $188,125,761 | 975,267 | $6,416,085 | $3,899 | $1,739,392 | 0.00304% | ||||
| Tsunami | n/a | n/a | n/a | n/a | n/a | n/a | NRI publishes no building exposure for this county | ||||
| Wildfire | $12,247,041,826 | $24,481,639 | 88,282 | $64,358 | $15 | $11,712 | 0.000525% | ||||
| Winter Weather | $211,333,470,818 | $188,125,761 | 975,267 | $86,635 | $90 | $230,590 | under 0.0001% |
Totals since the plan: not available. Connecticut planning regions have no county-level plan in FEMA data; see each town's plan dates in the region.
FEMA does not split Public Assistance by hazard. A declaration mapped to several hazards is listed under each of them with its full amount, so the per-hazard column does not add up to the total; the unit total counts each declaration once.
NRI computes earthquake exposure on its own basis, so it exceeds the county building value in B2-a.
Supports FEMA checklist item B2-a: vulnerability (county context)
County context
Source: 5
| Measure | Value |
|---|---|
| Population | 975,267 |
| Building value (total, not at risk) | $211,333,505,302 |
| Agriculture value (total, not at risk) | $188,125,761 |
| NRI risk rating (all hazards) | Relatively High |
| Expected annual loss, buildings and agriculture, all hazards | $273,386,626 |
| Expected annual loss, population equivalence, all hazards (NRI values each statistical life at $13.7M; a modeled value of expected deaths and injuries, not property damage) | $28,913,239 |
| Social vulnerability rating | Relatively Low |
| Community resilience rating | Relatively High |
| NRI version | December 2025 |
FEMA's all-hazard expected annual loss adds buildings, agriculture and population equivalence; this table gives the property part and the population-equivalence part as separate rows.
Social vulnerability: higher means people are more likely to be harmed and slower to recover. Community resilience: lower means the community is less able to recover. High social vulnerability and low resilience both raise the NRI risk rating.
Supports FEMA checklist item B2-c: repetitive loss properties
Repetitive loss in this county, both definitions
Sources: 1, 4
| Definition | Properties | Severe repetitive loss | Properties |
|---|---|---|---|
| Repetitive loss, FMA definition (44 CFR 77.2) | 2 | Severe repetitive loss, FMA definition (44 CFR 77.2) | 18 |
| Repetitive loss, NFIP insurance definition | 134 | Severe repetitive loss, NFIP insurance definition | 16 |
The state NFIP coordinator's list, the source FEMA's Handbook names, often uses the NFIP insurance definition (second row).
Repeat-flood properties: county and state-level rows
Sources: 1, 4
| Scope | RL, FMAproperties | SRL, FMAproperties | RL, NFIPproperties | SRL, NFIPproperties | Any categoryproperties | Mitigatedproperties | Currently insuredproperties |
|---|---|---|---|---|---|---|---|
| County total | 2 | 18 | 134 | 16 | 136 | 1 | 41 |
| of which: Avon town | 0 | 0 | 3 | 0 | 3 | 0 | 2 |
| of which: Berlin town | 0 | 1 | 5 | 1 | 5 | 0 | 0 |
| of which: East Hartford town | 0 | 1 | 5 | 1 | 5 | 0 | 1 |
| of which: Enfield town | 0 | 1 | 7 | 1 | 7 | 0 | 4 |
| of which: Farmington town | 1 | 1 | 5 | 1 | 5 | 0 | 0 |
| of which: Manchester town | 0 | 0 | 1 | 0 | 1 | 0 | 0 |
| of which: New Britain city | 0 | 0 | 16 | 0 | 16 | 0 | 6 |
| of which: Newington town | 0 | 1 | 5 | 1 | 5 | 0 | 1 |
| of which: Plainville town | 0 | 2 | 2 | 1 | 3 | 1 | 0 |
| of which: Simsbury town | 0 | 1 | 11 | 1 | 11 | 0 | 4 |
| of which: South Windsor town | 0 | 1 | 2 | 1 | 2 | 0 | 0 |
| of which: Southington town | 0 | 1 | 11 | 1 | 11 | 0 | 3 |
| of which: Suffield town | 0 | 0 | 1 | 0 | 1 | 0 | 1 |
| of which: Wethersfield town | 0 | 0 | 7 | 0 | 7 | 0 | 3 |
| of which: Windsor town | 0 | 0 | 2 | 0 | 2 | 0 | 2 |
| of which: Windsor Locks town | 0 | 0 | 1 | 0 | 1 | 0 | 1 |
| of which: Bloomfield town | 0 | 0 | 5 | 0 | 5 | 0 | 1 |
| of which: Granby town | 0 | 0 | 1 | 0 | 1 | 0 | 0 |
| of which: Mansfield town | 1 | 2 | 3 | 2 | 3 | 0 | 2 |
| of which: Vernon town | 0 | 1 | 3 | 1 | 3 | 0 | 1 |
| of which: Canton town | 0 | 0 | 6 | 0 | 6 | 0 | 0 |
| of which: Rocky Hill town | 0 | 0 | 1 | 0 | 1 | 0 | 0 |
| of which: Marlborough town | 0 | 0 | 1 | 0 | 1 | 0 | 1 |
| of which: Columbia town | 0 | 0 | 1 | 0 | 1 | 0 | 0 |
| of which: Tolland town | 0 | 0 | 1 | 0 | 1 | 0 | 0 |
| of which: Hartford city | 0 | 1 | 3 | 1 | 3 | 0 | 1 |
| of which: West Hartford town | 0 | 4 | 25 | 3 | 26 | 0 | 7 |
| Statewide, no county in FEMA's file | 0 | 0 | 9 | 0 | 9 | 0 | 4 |
The statewide row counts properties FEMA's file gives with no county in this state; they are listed for reference and are not in this county's counts.
Repeat-flood properties by jurisdiction in the plan (NFIP community)
Sources: 1, 4
| Jurisdiction | NFIP community ID | RL, FMAproperties | SRL, FMAproperties | RL, NFIPproperties | SRL, NFIPproperties | Any categoryproperties | Mitigatedproperties | Currently insuredproperties |
|---|---|---|---|---|---|---|---|---|
| Hartford city | 095080 | 0 | 1 | 3 | 1 | 3 | 0 | 1 |
| New Britain city | 090032 | 0 | 0 | 16 | 0 | 16 | 0 | 6 |
| Andover town | 090161 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
| Avon town | 090021 | 0 | 0 | 3 | 0 | 3 | 0 | 2 |
| Berlin town | 090022 | 0 | 1 | 5 | 1 | 5 | 0 | 0 |
| Bloomfield town | 090122 | 0 | 0 | 5 | 0 | 5 | 0 | 1 |
| Bolton town | 090109 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
| Canton town | 090135 | 0 | 0 | 6 | 0 | 6 | 0 | 0 |
| Columbia town | 090160 | 0 | 0 | 1 | 0 | 1 | 0 | 0 |
| Coventry town | 090110 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
| East Granby town | 090025 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
| East Hartford town | 090026 | 0 | 1 | 5 | 1 | 5 | 0 | 1 |
| East Windsor town | 090027 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
| Ellington town | 090158 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
| Enfield town | 090028 | 0 | 1 | 7 | 1 | 7 | 0 | 4 |
| Farmington town | 090029 | 1 | 1 | 5 | 1 | 5 | 0 | 0 |
| Glastonbury town | 090124 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
| Granby town | 090125 | 0 | 0 | 1 | 0 | 1 | 0 | 0 |
| Hebron town | 090162 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
| Manchester town | 090031 | 0 | 0 | 1 | 0 | 1 | 0 | 0 |
| Mansfield town | 090128 | 1 | 2 | 3 | 2 | 3 | 0 | 2 |
| Marlborough town | 090148 | 0 | 0 | 1 | 0 | 1 | 0 | 1 |
| Newington town | 090033 | 0 | 1 | 5 | 1 | 5 | 0 | 1 |
| Plainville town | 090034 | 0 | 2 | 2 | 1 | 3 | 1 | 0 |
| Rocky Hill town | 090142 | 0 | 0 | 1 | 0 | 1 | 0 | 0 |
| Simsbury town | 090035 | 0 | 1 | 11 | 1 | 11 | 0 | 4 |
| Somers town | 090112 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
| South Windsor town | 090036 | 0 | 1 | 2 | 1 | 2 | 0 | 0 |
| Southington town | 090037 | 0 | 1 | 11 | 1 | 11 | 0 | 3 |
| Stafford town | 090152 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
| Suffield town | 090038 | 0 | 0 | 1 | 0 | 1 | 0 | 1 |
| Tolland town | 090171 | 0 | 0 | 1 | 0 | 1 | 0 | 0 |
| Vernon town | 090131 | 0 | 1 | 3 | 1 | 3 | 0 | 1 |
| West Hartford town | 095082 | 0 | 4 | 25 | 3 | 26 | 0 | 7 |
| Wethersfield town | 090040 | 0 | 0 | 7 | 0 | 7 | 0 | 3 |
| Willington town | 090159 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
| Windsor Locks town | 090042 | 0 | 0 | 1 | 0 | 1 | 0 | 1 |
| Windsor town | 090041 | 0 | 0 | 2 | 0 | 2 | 0 | 2 |
Counts by occupancy group for each jurisdiction are in the Excel file, sheet "B2-c Jurisdictions".
Jurisdiction rows are whole NFIP communities and need not add up to the county total: a community that extends into another county is counted in full on each jurisdiction row, while the county table counts only its part in this county.
County repeat-flood properties by occupancy group
Sources: 1, 4
| Occupancy group | RL, FMAproperties | SRL, FMAproperties | RL, NFIPproperties | SRL, NFIPproperties | Any categoryproperties | Mitigatedproperties | Currently insuredproperties |
|---|---|---|---|---|---|---|---|
| single-family residential | 1 | 11 | 102 | 9 | 104 | 1 | 37 |
| 2 to 4 unit residential | 0 | 0 | 10 | 0 | 10 | 0 | 0 |
| other residential | 0 | 0 | 1 | 0 | 1 | 0 | 1 |
| non-residential | 1 | 7 | 21 | 7 | 21 | 0 | 3 |
| not reported | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
FEMA's occupancy groups have no institutional class; institutional properties are counted in non-residential or other residential in the table by occupancy group.
FMA RL and FMA SRL are the Flood Mitigation Assistance definitions (44 CFR 77.2), the ones the FEMA Local Mitigation Planning Policy Guide cites. NFIP repetitive loss (the FEMA insurance definition) is 2 or more claims over $1,000 in 10 years, and a property can leave that group once it is mitigated. Also shown: NFIP severe repetitive loss, any category, mitigated and currently insured. The Methods page gives the OpenFEMA field details.
Counts are aggregates of FEMA's public NFIP Multiple Loss Properties file (FEMA's data date 2026-08-02; file version 2026-08-04). No property is identified. County assignment is FEMA's geocode.
In this county 0 properties are FMA repetitive loss but not NFIP repetitive loss, and 132 properties are NFIP repetitive loss but not FMA repetitive loss.
Exact counts; no count suppression.
Sources
Tables cite these sources by number. The full list, for the plan's bibliography (FEMA review item A4-a):
- FEMA, OpenFEMA HazardMitigationPlanStatuses v1, version 2026-09-29T134039Z, pulled 2026-09-30, https://www.fema.gov/api/open/v1/HazardMitigationPlanStatuses (API)
- FEMA, OpenFEMA DisasterDeclarationsSummaries v2, version 2026-09-29T162832Z, pulled 2026-09-30, https://www.fema.gov/api/open/v2/DisasterDeclarationsSummaries (API)
- FEMA, OpenFEMA PublicAssistanceFundedProjectsSummaries v1, version 2026-09-29T150754Z, pulled 2026-09-30, https://www.fema.gov/api/open/v1/PublicAssistanceFundedProjectsSummaries (API)
- FEMA, OpenFEMA NfipMultipleLossProperties v1, version 2026-08-04T164045Z, pulled 2026-09-30, https://www.fema.gov/api/open/v1/NfipMultipleLossProperties (API)
- FEMA, FEMA National Risk Index 1.20.0 (December 2025), county and census tract tables, version 1.20.0, pulled 2026-09-30, https://www.fema.gov/about/reports-and-data/openfema/nri/v120/NRI_Table_Counties.zip (download, 25 MB), https://www.fema.gov/about/reports-and-data/openfema/nri/v120/NRI_Table_CensusTracts.zip (download, 635 MB)
- NOAA NCEI, NOAA NCEI Storm Events Database, details files (csvfiles v1.0), version c20260918, pulled 2026-09-30, https://www.ncei.noaa.gov/pub/data/swdi/stormevents/csvfiles/
- NOAA National Weather Service, NWS county-public forecast zones correlation file, version bp03mr20 to bp16ap26 (11 files; newest bp16ap26), pulled 2026-09-30, https://www.weather.gov/gis/ZoneCounty
- U.S. Census Bureau, Census 2024 Gazetteer, 2020 place by county, CT county-to-cousub crosswalk, version 2024-gazetteer, pulled 2026-09-30, https://www2.census.gov/geo/docs/maps-data/data/gazetteer/2024_Gazetteer/2024_Gaz_counties_national.zip, https://www2.census.gov/geo/docs/maps-data/data/gazetteer/2024_Gazetteer/2024_Gaz_cousubs_national.zip, https://www2.census.gov/geo/docs/maps-data/data/gazetteer/2024_Gazetteer/2024_Gaz_place_national.zip, https://www2.census.gov/geo/docs/maps-data/data/gazetteer/2024_Gazetteer/2024_Gaz_unsd_national.zip, https://www2.census.gov/geo/docs/maps-data/data/gazetteer/2024_Gazetteer/2024_Gaz_elsd_national.zip, https://www2.census.gov/geo/docs/maps-data/data/gazetteer/2024_Gazetteer/2024_Gaz_scsd_national.zip, https://www2.census.gov/geo/docs/reference/codes2020/national_place_by_county2020.txt, https://www2.census.gov/geo/docs/reference/ct_change/ct_cou_to_cousub_crosswalk.xlsx (used to match place names and codes; no table prints its values)
What this packet is and what the plan adds
This packet is the federal data for the plan's risk assessment (the summary on page 1 says how it is organized); the plan and FEMA's review decide whether each item is met.
The plan adds what only the community has: local data on assets, critical facilities, development and each jurisdiction's impacts; local hazard history, including state-declared emergencies; the mitigation strategy; and adoption.
How the federal data are built: National Risk Index values are FEMA's model, not counts of events. Storm Events is more complete from 1996; zone-level records are placed by forecast zone, not by location in the county. Public Assistance for a jurisdiction is matched by applicant name. The Methods page gives every rule and the known edge cases.
OpenFEMA disclaimer
This product uses the Federal Emergency Management Agency's OpenFEMA API, but is not endorsed by FEMA. The Federal Government or FEMA cannot vouch for the data or analyses derived from these data after the data have been retrieved from the Agency's website(s).
Reuse, citation and corrections
Reuse and citation: Hazard Plain text and tables are licensed under Creative Commons Attribution 4.0 International (CC BY 4.0, https://creativecommons.org/licenses/by/4.0/); credit Hazard Plain and the release. The underlying federal data are public domain; OpenFEMA data are also subject to the OpenFEMA terms and conditions.
Cite this: Hazard Plain (2026). Capitol Planning Region, CT: risk-assessment baseline packet, release 2026-10 (data as of 2026-09-30; Planning region FIPS 09110). Automated baseline. https://hazardplain.org/ct/09110/ Built from FEMA OpenFEMA, the FEMA National Risk Index and NOAA NCEI Storm Events; source versions in the packet's Sources list.
Corrections: to report an error, name the packet, the table and what your records show. Contact: contact@hazardplain.org