Hazard Plain Automated baseline

Grafton County, NH

Risk-assessment baseline packet

County FIPS:
33009
Release:
2026-10
Data as of:
2026-09-30
Storm Events data through:
2026-06-30

Hazard Plain is an independent product built from public federal data. It is not a FEMA document and is not reviewed or endorsed by FEMA or any state agency.

Hazard Plain release 2026-10, as of 2026-09-30.

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 ($42,974,293 a year), Hurricane ($1,702,570) and Cold Wave ($1,216,065).

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. No county-level plan row in FEMA data, so there is no approval date to count from.

Sources: 1, 2, 4, 6 (numbered list at the end)

Plan status for every jurisdiction listed in this county: 39 rows, in the section "Plan clock: Plan status for every jurisdiction listed in this county" 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 county

Source: 1

JurisdictionTypeStatusPlanApprovedExpiresDays to expirynegative = days since expiryUpdate underwayNotes
Lebanon cityCityApproved, expires 2029-05-19City of Lebanon, NH Hazard Mitigation Plan Update 2023 (FEMA plan 108950)2024-05-202029-05-19962
Alexandria townTownApproved, expires 2030-09-16Alexandria, NH Hazard Mitigation Plan Update 2025 (FEMA plan 110910)2025-09-172030-09-161,447
Ashland townTownApproved, expires 2030-04-15Ashland, NH Hazard Mitigation Plan Update 2024 (FEMA plan 110317)2025-04-162030-04-151,293
Bath townTownApproved, expires 2029-12-15Bath, NH Hazard Mitigation Plan Update 2024 (FEMA plan 110266)2024-12-162029-12-151,172
Benton townTownExpired on 2024-07-31Town of Benton, NH Multi-Hazard Mitigation Plan 2019 Update and Community Wildfire Protection Plan (FEMA plan 105893)2019-08-012024-07-31-791
Bethlehem townTownExpired on 2026-07-26Bethlehem Hazard Mitigation Plan Update 2021 (FEMA plan 107642)2021-07-272026-07-26-66FEMA tracker shows a plan in review
Bridgewater townTownApproved, expires 2029-04-18Town of Bridgewater, New Hampshire Hazard Mitigation Plan Update, 2024 (FEMA plan 109736)2024-04-192029-04-18931
Bristol townTownApproved, expires 2029-03-24Bristol, NH Hazard Mitigation Plan Update 2024 (FEMA plan 109139)2024-03-252029-03-24906
Campton townTownExpired on 2026-03-02Campton Hazard Mitigation Plan Update 2021 (FEMA plan 107272)2021-03-032026-03-02-212
Canaan townTownApproved, expires 2029-04-21Canaan, NH Hazard Mitigation Plan Update 2024 (FEMA plan 109679)2024-04-222029-04-21934
Dorchester townTownApproved, expires 2029-05-30Town of Dorchester Hazard Mitigation Plan Update 2024 (FEMA plan 109806)2024-05-312029-05-30973
Easton townTownApproved, expires 2029-02-11Easton Hazard Mitigation Plan Update 2023 (FEMA plan 109117)2024-02-122029-02-11865
Ellsworth townTownApproved, expires 2029-10-27Town of Ellsworth, NH Hazard Mitigation Plan Update 2024 (FEMA plan 110085)2024-10-282029-10-271,123
Enfield townTownApproved, expires 2027-03-23Enfield Hazard Mitigation Plan Update 2022 (FEMA plan 108214)2022-03-242027-03-23174
Franconia townTownApproved, expires 2030-07-01Franconia, NH Hazard Mitigation Plan Update 2025 (FEMA plan 110651)2025-07-022030-07-011,370
Grafton townTownApproved, expires 2031-03-31Grafton, NH Hazard Mitigation Plan Update 2026 (FEMA plan 111626)2026-04-012031-03-311,643
Groton townTownApproved, expires 2029-12-05Groton, NH Hazard Mitigation Plan Update 2024 (FEMA plan 110203)2024-12-062029-12-051,162
Hanover townTownApproved, expires 2028-03-29Hanover Hazard Mitigation Plan Update 2022 (FEMA plan 108658)2023-03-302028-03-29546
Haverhill townTownApproved, expires 2031-04-28Town of Haverhill, Hazard Mitigation Plan Update 2026 (FEMA plan 111747)2026-04-292031-04-281,671
Hebron townTownApproved, expires 2029-04-02Hebron, NH Hazard Mitigation Plan Update 2024 (FEMA plan 109366)2024-04-032029-04-02915
Holderness townTownApproved, expires 2027-03-16Holderness Hazard Mitigation Plan Update 2022 (FEMA plan 108186)2022-03-172027-03-16167
Landaff townTownApproved, expires 2030-07-01Town of Landaff Hazard Mitigation Plan Update 2025 (FEMA plan 110826)2025-07-022030-07-011,370
Lincoln townTownApproved, expires 2029-02-28Lincoln Hazard Mitigation Plan Update 2023 (FEMA plan 109129)2024-03-012029-02-28882
Lisbon townTownApproved, expires 2029-05-19Lisbon Hazard Mitigation Plan Update 2024 (FEMA plan 109368)2024-05-202029-05-19962
Littleton townTownApproved, expires 2029-09-16Littleton, NH Hazard Mitigation Plan Update 2024 (FEMA plan 109951)2024-09-172029-09-161,082
Lyman townTownApproved, expires 2029-04-30Lyman Hazard Mitigation Plan Update 2024 (FEMA plan 109644)2024-05-012029-04-30943
Lyme townTownApproved, expires 2029-11-24Lyme Hazard Mitigation Plan Update 2024 (FEMA plan 110207)2024-11-252029-11-241,151
Monroe townTownApproved, expires 2029-07-21Town of Monroe Hazard Mitigation Plan Update 2024 (FEMA plan 109845)2024-07-222029-07-211,025
Orange townTownApproved, expires 2029-02-11Orange Hazard Mitigation Plan Update 2023 (FEMA plan 109042)2024-02-122029-02-11865
Orford townTownApproved, expires 2029-03-24Orford Hazard Mitigation Plan Update 2024 (FEMA plan 109472)2024-03-252029-03-24906
Piermont townTownApproved, expires 2029-06-12Town of Piermont, NH Hazard Mitigation Plan Update 2023 (FEMA plan 109064)2024-06-132029-06-12986
Plymouth townTownApproved, expires 2031-08-11Town of Plymouth, New Hampshire Hazard Mitigation Plan Update 2026 (FEMA plan 111950)2026-08-122031-08-111,776
Rumney townTownApproved, expires 2029-04-02Town of Rumney, NH Hazard Mitigation Plan 2023 (FEMA plan 109038)2024-04-032029-04-02915
Sugar Hill townTownApproved, expires 2029-04-18Sugar Hill, NH Hazard Mitigation Plan Update 2024 (FEMA plan 109678)2024-04-192029-04-18931
Thornton townTownApproved, expires 2029-02-25Thornton, NH Hazard Mitigation Plan Update 2024 (FEMA plan 109065)2024-02-262029-02-25879
Warren townTownApproved, expires 2027-06-13Town of Warren, NH Hazard Mitigation Plan Update 2022 (FEMA plan 108344)2022-06-142027-06-13256
Waterville Valley townTownExpired on 2026-03-18Waterville Valley Hazard Mitigation Plan Update 2021 (FEMA plan 107311)2021-03-192026-03-18-196FEMA tracker shows a plan approvable pending adoptionNot yet eligible: adopt the approved plan.
Wentworth townTownExpired on 2026-03-23Wentworth Hazard Mitigation Plan Update 2021 (FEMA plan 107321)2021-03-242026-03-23-191
Woodstock townTownApproved, expires 2030-07-21Woodstock, NH Hazard Mitigation Plan Update 2025 (FEMA plan 110937)2025-07-222030-07-211,390

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 EALHazardNRI risk ratingEAL ratingEAL buildingsmodeled dollars per yearEAL agriculturemodeled dollars per yearCost of expected deaths and injuriesFEMA's dollar value per year, not property damageEAL total (see note)modeled dollars per yearStorm Events records, 1996 to 2026-06-30countStorm Events coverage note
1Inland FloodingRelatively ModerateRelatively Moderate$41,093,911$171,525$1,708,857$42,974,293253
2HurricaneRelatively LowRelatively Moderate$1,590,561$52,628$59,380$1,702,5702
3Cold WaveRelatively LowRelatively Moderate$485$8,255$1,207,325$1,216,06524Includes 1 Frost/Freeze record (outside NRI's Cold Wave definition; counted in this table and in B1-d, not in the B1-e descriptor).
4EarthquakeRelatively LowRelatively Low$700,875n/a$146,627$847,502Storm Events does not record earthquakes.
5LightningRelatively ModerateRelatively Moderate$56,559n/a$771,492$828,05210
6Winter WeatherRelatively HighRelatively High$162,040$40$445,567$607,647206
7Strong WindRelatively LowRelatively Moderate$126,892$760$449,514$577,166406Includes 20 High Wind and 30 Strong Wind records (NOAA non-thunderstorm wind types, outside NRI's Strong Wind definition).
8LandslideRelatively ModerateRelatively Moderate$54,540n/a$489,286$543,8252
9TornadoVery LowRelatively Low$75,747$147$302,536$378,4306
10Ice StormRelatively ModerateRelatively Moderate$311,709n/a$20,568$332,2773
11Heat WaveRelatively LowRelatively Lowunder $1$7,092$302,610$309,7022
12HailVery LowVery Low$7,494$587$66,599$74,679118
13WildfireVery LowVery Low$14,807$3$1,598$16,4080No recorded events in Storm Events since 1996 (data through 2026-06-30).
14AvalancheRelatively LowVery Lowunder $1n/a$12,896$12,8960No recorded events in Storm Events since 1996 (data through 2026-06-30).
15DroughtNo RatingNo Expected Annual Lossesn/a$0n/a$019

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 records (Storm Events records this hazard only in part).

Not applicable to this county per NRI, with no federal declaration and no Storm Events record since 1996: coastal flooding, tsunami 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.

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

HazardHighest-rated census tractsNRI risk rating, score 0 to 100
Avalanchetract 9604.02 (Very Low, 68.3); tract 9612.02 (Very Low, 67.8); tract 9612.01 (Very Low, 67.7)
Earthquaketract 9616.03 (Relatively Moderate, 79.7); tract 9618.02 (Relatively Low, 65.9); tract 9616.04 (Relatively Low, 64.0)
Hurricanetract 9616.03 (Relatively Moderate, 79.7); tract 9604.02 (Relatively Low, 78.2); tract 9618.02 (Relatively Low, 77.9)
Landslidetract 9604.02 (Relatively High, 99.7); tract 9603 (Relatively High, 99.5); tract 9609 (Relatively High, 99.4)
Tornadotract 9616.03 (Relatively Low, 38.8); tract 9613 (Relatively Low, 34.2); tract 9612.01 (Relatively Low, 33.2)
Wildfiretract 9614 (Very Low, 68.0); tract 9609 (Very Low, 67.4); tract 9613 (Very Low, 67.3)

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 9604.02 is Census Tract 9604.02). 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

HazardScaleRecordscount and yearsObserved rangeWorst recorded eventMost damaging (when different)How it applies to jurisdictionsNote
Avalanchenone (count and damage only)0
Cold/Wind Chill, Extreme Cold/Wind Chillwind chill23 records, 1998 to 2026 (23 zone-level)1 day to 6 days (median 2 days); 20 with a recorded value6 consecutive days, 2000-01-13 to 2000-01-18, zone-levelCountywide (zone-level records).
Frost/Freeze (outside NRI's Cold Wave definition)crop damage1 record, 2023 (1 zone-level)No crop damage reported in 1 record.Countywide (zone-level records).
DroughtU.S. Drought Monitor scale (D0 to D4)19 records, 1999 to 2026 (19 zone-level)26 days to 212 days (median 46 days); 8 with a recorded value212 days (7 months), 2025-11-01 to 2026-05-31, a run of 7 consecutive Storm Events drought records, zone-levelDrought, 2020-10-01, $100,000 property; $500,000 crops (zone total, 2020 dollars)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.
EarthquakeModified Mercalli (local data)0Storm Events does not record earthquakes; the USGS earthquake catalog is the source.
Hailhail size (inches)132 records, 1957 to 20260.75 in to 3 in (median 1 in); 132 with a recorded value3 in hail, 2008-06-22Hail, 2024-06-20, $5,000 property; $0 crops (2024 dollars)Event records naming jurisdictions in the plan: Littleton town (13 records), Bristol town (9 records), Orford town (7 records), Hanover town (6 records), Lebanon city (6 records), Ashland town (5 records), Wentworth town (5 records), Enfield town (4 records), Lisbon town (4 records), Warren town (3 records); and 17 more jurisdictions (see the Excel file).
Excessive Heat, Heatheat index (in event narratives)2 records, 1998 (2 zone-level)No in-season record among 2 records, so no run is shown (see the note).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 DepressionSaffir-Simpson2 records, 2011 to 2020 (2 zone-level)Strongest recorded: Tropical Storm record, 2020-08-04, damage not reported; NWS zone NHZ003Countywide (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 StormSperry-Piltz ice scale (local data)3 records, 1998 to 2011 (3 zone-level)Ice Storm, 1998-01-07, $1,300,000 property; crops not reported (1998 dollars); NWS zone NHZ003Countywide (zone-level records).
Flash Flood, Flood, Lakeshore Flooddamage and flood days (flood depth: FIRM)253 records, 1996 to 2026 (35 zone-level)Flash Flood, 2013-07-02, $6,500,000 property; $0 crops (2013 dollars)Event records naming jurisdictions in the plan: Woodstock town (31 records), Bristol town (7 records), Plymouth town (7 records), Wentworth town (5 records), Bath town (4 records), Benton town (4 records), Bethlehem town (4 records), Enfield town (4 records), Franconia town (4 records), Groton town (4 records); and 23 more jurisdictions (see the Excel file). Zone-level records (35) 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 Flownone (count and damage only)2 records, 1996 to 2012 (1 zone-level)No damage reported in 2 records.Event records naming jurisdictions in the plan: Lincoln town (1 record). Zone-level records (1) apply countywide.
Lightningannualized frequency (the measure FEMA's Local Mitigation Planning Handbook names)10 records, 1997 to 2005Lightning, 2000-06-25, $700,000 property; crops not reported (2000 dollars)Event records naming jurisdictions in the plan: Plymouth town (2 records), Warren town (2 records), Ashland town (1 record), Bristol town (1 record), Franconia town (1 record), Lincoln town (1 record), Piermont town (1 record).Storm Events lists lightning with damage or casualties.
High Wind and Strong Wind (outside NRI's Strong Wind definition)wind speed (kt and mph)50 records, 1996 to 2022 (50 zone-level)34 kt (39 mph) to 52 kt (60 mph) (median 50 kt (58 mph)); 20 with a recorded value52 kt (60 mph) estimated gust, High Wind, 2017-10-30; same speed and measurement basis also recorded on 2000-12-17, 2006-02-17; NWS zone NHZ003High Wind, 2012-10-29, $150,000 property; $0 crops (zone total, 2012 dollars)Countywide (zone-level records).
Thunderstorm Windwind speed (kt and mph)408 records, 1961 to 202650 kt (58 mph) to 72 kt (83 mph) (median 50 kt (58 mph)); 358 with a recorded value72 kt (83 mph), measurement type not recorded, Thunderstorm Wind, 1985-08-15, 1 direct injuryThunderstorm Wind, 2024-08-04, $5,000 property; $0 crops (2024 dollars)Event records naming jurisdictions in the plan: Littleton town (37 records), Bath town (17 records), Lebanon city (16 records), Plymouth town (16 records), Alexandria town (14 records), Bethlehem town (14 records), Bristol town (13 records), Hanover town (13 records), Lisbon town (10 records), Haverhill town (9 records); and 26 more jurisdictions (see the Excel file).
TornadoEnhanced Fujita (Fujita before Feb 2007)14 records, 1963 to 2024F/EF0 to F/EF2 (median F/EF1); 13 with a recorded valueF2 tornado, 1966-08-11, 9 mi path length (whole path, pre-1996), 100 yd wide, $250,000 property; crops not recorded (1966 dollars)Event records naming jurisdictions in the plan: Bath town (1 record), Benton town (1 record), Bridgewater town (1 record), Lincoln town (1 record), Orange town (1 record), Orford 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).
Wildfireacres burned (local data)0
Winter Storm, Heavy Snow, Blizzard, Lake-Effect Snow, Winter Weather, Sleetnone in data (snowfall: local data)206 records, 1996 to 2026 (206 zone-level)No damage reported in 206 records.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 avalanche, debris flow and lightning.

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: 40 declarations covering 33 separate hazard incidents counted in this packet (declarations for the same incident count once; non-natural and evacuation-only declarations are not counted).

No county-level plan row in FEMA data, so there is no approval date to count from.

Federal disaster declarations for this county

Sources: 1, 2, 3

DeclaredIncident beganFEMA numberTypeTitleMapped hazardCounty Public Assistancefederal share obligated, nominal dollarsFlagsNotes
2024-08-202024-07-10DR-4812-NHMajor disasterSevere Storm and FloodingInland Flooding$715,625.60within last 5 years
2024-07-102024-04-03DR-4799-NHMajor disasterSevere Winter Storm and FloodingWinter Weather (primary); also designated: Inland Floodingno Public Assistance recordedwithin last 5 years
2024-04-192024-01-09DR-4771-NHMajor disasterSevere Storms and FloodingInland Flooding$995,531.77within last 5 years
2024-02-272023-12-17DR-4761-NHMajor disasterSevere Storm and FloodingInland Flooding$1,435,798.08within last 5 years
2023-09-142023-07-09DR-4740-NHMajor disasterSevere Storms and FloodingInland Flooding$311,923.36within last 5 years
2023-03-152022-12-22DR-4693-NHMajor disasterSevere Storm and FloodingInland Flooding$3,987,316.28within last 5 years
2020-04-032020-01-20DR-4516-NHMajor disasterCOVID-19 PandemicNon-natural, not counted$13,639,397.87
2020-03-132020-01-20EM-3445-NHEmergencyCOVID-19Non-natural, not countedno Public Assistance recordedsame incident as DR-4516
2019-08-152019-07-11DR-4457-NHMajor disasterSevere Storm and FloodingInland Flooding$1,522,895.51
2018-01-022017-10-29DR-4355-NHMajor disasterSevere Storm and FloodingInland Flooding$6,240,359.23
2017-08-092017-07-01DR-4329-NHMajor disasterSevere Storms and FloodingInland Flooding$3,774,320.88
2013-08-022013-06-26DR-4139-NHMajor disasterSevere Storms, Tornadoes, and FloodingInland Flooding; Tornado$4,046,305.71
2012-11-282012-10-26DR-4095-NHMajor disasterHurricane SandyHurricane$1,451,111.14
2012-10-302012-10-26EM-3360-NHEmergencyHurricane SandyHurricaneno Public Assistance recordedsame incident as DR-4095
2011-11-012011-10-29EM-3344-NHEmergencySevere StormHazard not mapped (severe storm title names no single hazard); not countedno Public Assistance recorded
2011-09-032011-08-26DR-4026-NHMajor disasterTropical Storm IreneHurricane$11,072,277.54
2011-08-272011-08-26EM-3333-NHEmergencyHurricane IreneHurricaneno Public Assistance recordedsame incident as DR-4026
2011-07-222011-05-26DR-4006-NHMajor disasterSevere Storms and FloodingInland Flooding$125,407.19
2010-03-292010-02-23DR-1892-NHMajor disasterSevere Winter StormWinter Weather$1,990,589.42
2009-01-022008-12-11DR-1812-NHMajor disasterSevere Winter StormIce Storm$1,691,954.07
2008-12-132008-12-11EM-3297-NHEmergencySevere Winter StormWinter Weatherno Public Assistance recordedsame incident as DR-1812
2008-09-052008-07-24DR-1787-NHMajor disasterSevere Storms and FloodingInland Flooding$519,682.39
2007-04-272007-04-15DR-1695-NHMajor disasterSevere Storms and FloodingInland Flooding$2,713,520.26
2006-05-252006-05-12DR-1643-NHMajor disasterSevere Storms and FloodingInland Flooding$271,007.64
2005-10-262005-10-07DR-1610-NHMajor disasterSevere Storms and FloodingInland FloodingPA not declared for this county
2005-09-192005-08-29EM-3258-NHEmergencyHurricane Katrina EvacuationHurricane: evacuation support, not a local hazard event; not countedno Public Assistance recorded
2005-03-302005-02-10EM-3208-NHEmergencyRecord SnowWinter Weather$195,730.11
2005-03-302005-01-22EM-3207-NHEmergencyRecord and/or Near Record SnowWinter Weather$126,840.79
2004-01-152003-12-06EM-3193-NHEmergencySnowWinter Weather$136,233.61
2001-03-282001-03-05EM-3166-NHEmergencySnowWinter Weather$173,063.56
1999-10-181999-09-16DR-1305-NHMajor disasterTropical Storm FloydHurricane$408,498.15
1998-07-021998-06-12DR-1231-NHMajor disasterSevere Storms and FloodingInland Flooding; Winter Weatherno Public Assistance recorded
1998-01-151998-01-07DR-1199-NHMajor disasterSevere Ice Storm, Rains and High WindsIce Storm; Strong Windno Public Assistance recorded
1996-10-291996-10-20DR-1144-NHMajor disasterFall Northeaster RainstormInland Floodingno Public Assistance recorded
1996-01-031995-10-20DR-1077-NHMajor disasterExcessive Rainfall, High Winds, and FloodingInland Flooding (primary); also designated: Strong Windno Public Assistance recorded
1993-03-161993-03-13EM-3101-NHEmergencyBlizzards, High Winds & Record SnowfallWinter Weatherno Public Assistance recorded
1990-08-291990-08-07DR-876-NHMajor disasterSevere Storms & FloodingInland Floodingno Public Assistance recorded
1987-04-161987-03-30DR-789-NHMajor disasterSevere Storms & FloodingInland Floodingno Public Assistance recorded
1974-01-211974-01-21DR-411-NHMajor disasterHeavy Rains & FloodingInland Floodingno Public Assistance recorded
1973-07-111973-07-11DR-399-NHMajor disasterSevere Storms & FloodingInland Floodingno Public Assistance recorded

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

DeclaredIncident beganFEMA numberTypeTitleMapped hazard
1953-07-021953-07-02DR-11-NHMajor disasterForest FireWildfire

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.

Public Assistance filed under this county for declarations that do not list it: 3 rows, $2,135,135.87

Sources: 2, 3

FEMA numberDeclaredTitleApplicantPA obligatedfederal share obligated, nominal dollars
DR-4316-NH2017-06-01Severe Winter StormNH Electric CO-OP (NHEC)$1,454,120.36
DR-4049-NH2011-12-05Severe Storm and SnowstormNH Electric CO-OP (NHEC)$210,156.26
DR-1782-NH2008-08-11Severe Storms, Tornado, and FloodingNew Hampshire Electric CO-OP$470,859.25

FEMA's Public Assistance summaries file these applicants under this county, but FEMA's declaration rows for these disasters do not designate it (an electric cooperative or district serving several counties, for example). Not in any declaration row above and not counted.

Previous occurrences by hazard, with explicit no-event rows

Sources: 2, 6, 7

HazardStorm Events records, all years on file(years in the Period column)Since plan approvalrecordsIn the 12 months before plan approvalrecordsLast 5 yearsrecordsDeclared incidents, all yearsseparate disastersDeclared since approvalseparate disastersPeriodStatement
Avalanche0001996 to 2026-06-30No recorded events, 1996 to 2026-06-30, NOAA NCEI Storm Events
Cold Wave24301996 to 2026-06-30Includes 1 Frost/Freeze record.
Drought19801996 to 2026-06-30
Earthquake000Storm Events does not record earthquakes; the USGS earthquake catalog is the source.
Hail1321801955 to 2026-06-30
Heat Wave2001996 to 2026-06-30
Hurricane2031996 to 2026-06-30
Ice Storm3021996 to 2026-06-30
Inland Flooding25349221996 to 2026-06-30
Landslide2001996 to 2026-06-30
Lightning10001996 to 2026-06-30
Strong Wind4584621955 to 2026-06-30Includes 20 High Wind and 30 Strong Wind records.
Tornado14111950 to 2026-06-30
Wildfire0001996 to 2026-06-30No recorded events, 1996 to 2026-06-30, NOAA NCEI Storm Events
Winter Weather2062591996 to 2026-06-30

Notable Storm Events records

Sources: 1, 6, 7

DateEvent typeMagnitude or extentDamagenominal dollarsDeaths, injuriesdirect onlyLocationFlagsWhy listed
2026-04-20Winter Weather$0 property; $0 crops (zone total, 2026 dollars)1, 0NWS zone NHZ003 (NORTHERN GRAFTON), zone-levelwithin last 5 yearsdeaths or injuries recorded
2024-01-07Winter Stormdamage not reported1, 0NWS zone NHZ003 (NORTHERN GRAFTON), zone-levelwithin last 5 yearsdeaths or injuries recorded
2020-08-04Tropical Stormdamage not reported0, 0NWS zone NHZ003 (NORTHERN GRAFTON), zone-levelB1-c worst recorded: Hurricane, Tropical Storm, Tropical Depression
2017-10-30High Wind52 kt (60 mph) estimated gust$0 property; crops not reported (zone total, 2017 dollars)0, 0NWS zone NHZ003 (NORTHERN GRAFTON), zone-levelB1-c worst recorded: High Wind and Strong Wind
2013-07-02Flash Flood$6,500,000 property; $0 crops (2013 dollars)0, 0LEBANONB1-c worst recorded: Flash Flood, Flood, Lakeshore Flood
2008-06-22Hail3 in$0 property; $0 crops (2008 dollars)0, 0ORANGEB1-c worst recorded: Hail
2000-06-25Lightning$700,000 property; crops not reported (2000 dollars)0, 0WATERVILLE VLYB1-c worst recorded: Lightning
2000-01-13Extreme Cold/Wind Chilldamage not reported0, 0NWS zone NHZ003 (NORTHERN GRAFTON), zone-levelB1-c worst recorded: Cold/Wind Chill, Extreme Cold/Wind Chill
1998-06-27Flash Flood$1,500,000 property; crops not reported (1998 dollars)1, 1PIERMONTdeaths or injuries recorded
1998-01-07Ice Storm$1,300,000 property; crops not reported (zone total, 1998 dollars)0, 0NWS zone NHZ003 (NORTHERN GRAFTON), zone-levelB1-c worst recorded: Ice Storm
1985-08-15Thunderstorm Wind72 kt (83 mph), measurement type not recordeddamage not recorded (pre-1996 record)0, 1location not recordedB1-c worst recorded: Thunderstorm Wind
1966-08-11TornadoF2, 9 mi path length (whole path, pre-1996), 100 yd wide$250,000 property; crops not recorded (1966 dollars)0, 0location not recordedB1-c worst recorded: Tornado

The full list is in the Excel file, sheet "B1-d Storm Events history" (1,125 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).

FEMA's declaration data list no tribal or special-area declarations for this state.

Supports FEMA checklist item B1-e: probability of future events

Probability: FEMA annualized frequency and descriptor per hazard

Sources: 5, 6

HazardFEMA annualized frequency (modeled)unit per rowUnitIn plain termsDescriptorDescriptor basisNRI events or days in its record period (hail, wind and tornado are area-weighted, so can be fractional)NRI periodLocationNote
Avalanche0.01events per yearabout 1 in 100 yearsPossibleFEMA annualized frequency (modeled)01994 to 2023 (30 years)see B1-f0.01 is NRI's minimum avalanche frequency for a county in an avalanche susceptibility zone; NRI records no avalanche here, so the descriptor reflects the floor, not local events.
Cold Wave3.92event-days per yearabout 3.92 days per yearLikelyStorm Events event-days in 8 of 30 years, 1996 to 2025 (26.7%)74.22005-11-12 to 2024-11-12 (19 years)countywide
Drought0event-days per yearnone modeledLikelyStorm Events event-days in 4 of 30 years, 1996 to 2025 (13.3%)02000 to 2025 (25.25 years; D3 and D4 only)countywideNRI models no drought event-days here (2000 to 2025, 25.25 years; D3 and D4 only); Storm Events has a record in 4 of 30 years. The descriptor comes from Storm Events, which counts D2 drought that NRI leaves out.
Earthquake0.00137annual probability at a locationchance a given location in the county has at least minor-damage shaking in a year: 0.137%not shownmodeledsee B1-fNo descriptor (Storm Events does not record earthquakes).
Hail1.62events per yearabout 1.62 per yearHighly likelyFEMA annualized frequency (modeled)61.5 (modeled)1986 to 2023 (38 years)countywide
Heat Wave1.01event-days per yearabout 1.01 days per yearPossibleStorm Events event-days in 1 of 30 years, 1996 to 2025 (3.33%)19.32005-11-12 to 2024-11-12 (19 years)countywide
Hurricane0.0611events per yearabout 1 in 16 yearsPossibleFEMA annualized frequency (modeled)221851 to 2024 (Atlantic)see B1-fNRI counts hurricane and tropical storm tracks passing within storm-force wind range; federal declarations are in B1-d.
Ice Storm0.602event-days per yearabout 0.602 days per yearLikelyStorm Events event-days in 3 of 30 years, 1996 to 2025 (10%)411946-12-31 to 2014-02-12 (67 years)countywide
Inland Flooding4.29event-days per yearabout 4.29 days per yearHighly likelyStorm Events event-days in 28 of 30 years, 1996 to 2025 (93.3%)1201996 to 2023 (28 years)see B1-f
Landslide3.35events per year (modeled)about 3.35 per yearHighly likelyFEMA annualized frequency (modeled)not shownmodeledsee B1-f
Lightning19.7days per year with a strikeabout 19.7 days per yearHighly likelyFEMA annualized frequency (modeled)not shown1995 to 2023 (29 years; CONUS)countywide
Strong Wind0.789events per yearabout 0.79 per yearLikelyFEMA annualized frequency (modeled)311986 to 2023 (38 years)countywide
Tornado0.176events per yearabout 1 in 6 yearsLikelyFEMA annualized frequency (modeled)not shown1950 to 2023 (EF2+); 1986 to 2023 (EF0-1)see B1-f
Wildfire0.000017annual probability at a locationchance a given location in the county burns in a year: 0.0017%Storm Events records in 0 of 30 years, 1996 to 2025 (0%)not shownmodeledsee B1-fNo descriptor: no Storm Events record 1996 to 2025
Winter Weather22.1event-days per yearabout 22.1 days per yearHighly likelyStorm Events event-days in 30 of 30 years, 1996 to 2025 (100%)4192005-11-12 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

UnitDescriptorDefinition
events per yearHighly likely1 or more per year
events per yearLikelyabout once in 1 to 10 years
events per yearPossibleabout once in 10 to 100 years
events per yearUnlikelyless than once in 100 years
annual probabilityLikely10% to under 100% chance in a given year
annual probabilityPossible1% to under 10% chance in a given year
annual probabilityUnlikelyunder 1% chance in a given year
event-days (share of years)Highly likelyevent-days recorded in 90% or more of years
event-days (share of years)Likelyevent-days recorded in 10% to under 90% of years
event-days (share of years)Possibleevent-days recorded in some years but under 10% of years
lightning strike-daysHighly likelycloud-to-ground strikes on 1 or more days per year

Intensity bands: historical frequency (Storm Events)

Source: 6

HazardBandYearsEventscounty-coded recordsYears in periodEvents per yearevents / years
Hail1.00-1.99 in1996 to 202574302.47
Hail2.00 in+1996 to 20251300.0333
Thunderstorm Wind (counted as NRI Strong Wind)50-64 kt1996 to 20253423011.4
Thunderstorm Wind (counted as NRI Strong Wind)65 kt+1996 to 20255300.167
Thunderstorm Wind (counted as NRI Strong Wind)unmeasured or below 50 kt1996 to 20252300.0667
TornadoEF0-11996 to 20256300.2
TornadoEF2-31996 to 20250300
TornadoEF4-51996 to 20250300
Tornadounrated (EFU)1996 to 20250300

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

HazardTractsrated of allNRI risk score, 0 to 100Tracts by rating
MinMedianMax
Avalanche17 of 2865.266.868.3Very Low 17, Not Applicable 11
Cold Wave28 of 2829.343.166.9Relatively Moderate 10, Relatively Low 18
Drought0 of 28No Rating 28
Earthquake28 of 2827.145.479.7Relatively Moderate 1, Relatively Low 15, Very Low 12
Hail28 of 2826.432.747.6Relatively Low 6, Very Low 22
Heat Wave28 of 284.712.041.2Relatively Low 11, Very Low 17
Hurricane28 of 2864.870.979.7Relatively Moderate 1, Relatively Low 27
Ice Storm28 of 2849.970.689.0Relatively Moderate 16, Relatively Low 12
Inland Flooding28 of 2856.789.498.3Very High 3, Relatively High 17, Relatively Moderate 8
Landslide28 of 2883.897.099.7Relatively High 4, Relatively Moderate 16, Relatively Low 8
Lightning28 of 2860.179.295.3Relatively High 14, Relatively Moderate 14
Strong Wind28 of 2835.853.180.0Relatively Moderate 12, Relatively Low 16
Tornado28 of 2817.624.138.8Relatively Low 7, Very Low 21
Wildfire28 of 2848.559.668.0Very Low 28
Winter Weather28 of 2884.793.698.0Very High 3, Relatively High 25

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, 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.

Each jurisdiction (starting figures from federal data)

Sources: 1, 3, 4, 6

JurisdictionTypePlan statusRepetitive lossFMA RL and SRL (44 CFR 77.2); repeat-flood, any definitionPublic Assistance to this jurisdictionFEMA records matched by applicant name; federal share obligated, nominal dollarsEvent records naming this placeall years; since its planNotes
Lebanon cityCityApproved, expires 2029-05-19FMA RL 0, SRL 0; any 1$4,407,399.7026 total; 0 since its planIncludes $53,291.17 for declarations not counted as hazard incidents (DR-4516-NH).
Alexandria townTownApproved, expires 2030-09-16FMA RL 0, SRL 0; any 0$635,484.7119 total; 0 since its plan
Ashland townTownApproved, expires 2030-04-15FMA RL 0, SRL 0; any 2$43,497.6610 total; 0 since its plan
Bath townTownApproved, expires 2029-12-15FMA RL 0, SRL 0; any 1$147,292.7824 total; 1 since its plan
Benton townTownExpired on 2024-07-31FMA RL 0, SRL 0; any 0$91,291.467 total; 1 since its plan
Bethlehem townTownExpired on 2026-07-26FMA RL 0, SRL 0; any 0$98,346.5420 total; 2 since its plan
Bridgewater townTownApproved, expires 2029-04-18FMA RL 0, SRL 0; any 1$37,688.1110 total; 0 since its plan
Bristol townTownApproved, expires 2029-03-24FMA RL 0, SRL 0; any 0$148,419.6630 total; 2 since its planIncludes $7,029.67 for declarations not counted as hazard incidents (DR-4516-NH).
Campton townTownExpired on 2026-03-02FMA RL 0, SRL 1; any 3$367,990.135 total; 2 since its plan
Canaan townTownApproved, expires 2029-04-21FMA RL 0, SRL 0; any 2$582,923.287 total; 0 since its plan
Dorchester townTownApproved, expires 2029-05-30FMA RL 0, SRL 0; any 0$509,246.514 total; 0 since its plan
Easton townTownApproved, expires 2029-02-11FMA RL 0, SRL 0; any 0$15,909.956 total; 0 since its plan
Ellsworth townTownApproved, expires 2029-10-27FMA RL 0, SRL 0; any 0$59,164.751 total; 0 since its plan
Enfield townTownApproved, expires 2027-03-23FMA RL 0, SRL 0; any 0$684,711.7315 total; 5 since its plan
Franconia townTownApproved, expires 2030-07-01FMA RL 0, SRL 1; any 1$177,408.7113 total; 0 since its plan
Grafton townTownApproved, expires 2031-03-31FMA RL 0, SRL 0; any 0$1,108,728.471 total; 0 since its plan
Groton townTownApproved, expires 2029-12-05FMA RL 0, SRL 0; any 0$873,234.427 total; 0 since its plan
Hanover townTownApproved, expires 2028-03-29FMA RL 0, SRL 0; any 1$728,768.7522 total; 1 since its planIncludes $70,359.40 for declarations not counted as hazard incidents (DR-4516-NH).
Haverhill townTownApproved, expires 2031-04-28FMA RL 0, SRL 0; any 0$929,905.7513 total; 0 since its plan
Hebron townTownApproved, expires 2029-04-02FMA RL 0, SRL 0; any 0$301,549.5613 total; 0 since its plan
Holderness townTownApproved, expires 2027-03-16FMA RL 0, SRL 0; any 7$108,390.289 total; 0 since its plan
Landaff townTownApproved, expires 2030-07-01FMA RL 0, SRL 0; any 0$13,923.447 total; 0 since its plan
Lincoln townTownApproved, expires 2029-02-28FMA RL 0, SRL 0; any 0$6,920,013.3212 total; 2 since its plan
Lisbon townTownApproved, expires 2029-05-19FMA RL 0, SRL 0; any 2$115,343.4417 total; 0 since its plan
Littleton townTownApproved, expires 2029-09-16FMA RL 0, SRL 0; any 3$565,426.3054 total; 0 since its planIncludes $21,291.98 for declarations not counted as hazard incidents (DR-4516-NH).
Lyman townTownApproved, expires 2029-04-30FMA RL 0, SRL 0; any 0$146,352.050 total; 0 since its plan
Lyme townTownApproved, expires 2029-11-24FMA RL 0, SRL 0; any 0$333,260.698 total; 0 since its plan
Monroe townTownApproved, expires 2029-07-21FMA RL 0, SRL 0; any 0$402,645.9012 total; 0 since its plan
Orange townTownApproved, expires 2029-02-11FMA RL 0, SRL 0; any 0$1,207,444.717 total; 1 since its plan
Orford townTownApproved, expires 2029-03-24FMA RL 0, SRL 0; any 0$1,483,793.8119 total; 2 since its plan
Piermont townTownApproved, expires 2029-06-12FMA RL 0, SRL 0; any 0$140,807.0112 total; 1 since its plan
Plymouth townTownApproved, expires 2031-08-11FMA RL 0, SRL 0; any 2$364,897.9527 total; not yet covered
Rumney townTownApproved, expires 2029-04-02FMA RL 0, SRL 0; any 0$190,207.7612 total; 0 since its plan
Sugar Hill townTownApproved, expires 2029-04-18FMA RL 0, SRL 0; any 0$574,687.939 total; 1 since its plan
Thornton townTownApproved, expires 2029-02-25FMA RL 2, SRL 1; any 5$477,0841 total; 0 since its plan
Warren townTownApproved, expires 2027-06-13FMA RL 0, SRL 0; any 0$402,307.1216 total; 0 since its plan
Waterville Valley townTownExpired on 2026-03-18FMA RL 0, SRL 0; any 0$612,721.070 total; 0 since its plan
Wentworth townTownExpired on 2026-03-23FMA RL 0, SRL 0; any 0$1,624,620.3519 total; 1 since its plan
Woodstock townTownApproved, expires 2030-07-21FMA RL 0, SRL 0; any 0$101,906.3940 total; 1 since its plan

Repetitive-loss counts are for whole NFIP communities, which can extend beyond this county (see the note in B2-c).

County Public Assistance in B1-d also includes applicants filed under the county that are not jurisdictions in this plan (for example state agencies, special districts and nonprofits), so the jurisdiction rows add up to less.

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.

No county-level plan row in FEMA data, so there is no approval date to count from.

  • 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

HazardBuilding exposuremodeled dollarsAgriculture exposuremodeled dollarsPopulation exposedpeopleEAL buildingsmodeled dollars per yearEAL agriculturemodeled dollars per yearCost of expected deaths and injuriesFEMA's dollar value per year, not property damageEAL as % of exposurebuildings; agriculture where notedStorm Events damage since plancounty-coded records, property plus crops, nominal dollarsZone-level damage since planproperty plus crops, reported for the zonePublic Assistance since plannominal dollars; see noteNote
Avalanche$204,107n/a3under $1n/a$12,896under 0.0001%
Cold Wave$22,731,985,801$30,090,33491,072$485$8,255$1,207,325under 0.0001%
Droughtn/a$0n/an/a$0n/aagriculture exposure is 0 in NRI
Earthquake$40,909,604,945n/a91,118$700,875n/a$146,6270.00171%
Hail$22,731,989,798$30,090,33491,072$7,494$587$66,599under 0.0001%
Heat Wave$22,731,985,801$30,090,33491,072under $1$7,092$302,610under 0.0001%
Hurricane$22,731,979,678$30,090,33491,072$1,590,561$52,628$59,3800.007%
Ice Storm$22,731,985,801n/a91,072$311,709n/a$20,5680.00137%
Inland Flooding$22,642,182,398$7,435,3663,674$41,093,911$171,525$1,708,857n/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$1,498,918,814n/a6,759$54,540n/a$489,2860.00364%
Lightning$22,731,989,798n/a91,072$56,559n/a$771,4920.000249%
Strong Wind$22,731,989,798$30,090,33491,072$126,892$760$449,5140.000558%
Tornado$22,731,989,798$30,090,33491,072$75,747$147$302,5360.000333%
Wildfire$12,381,610,563$22,812,27156,464$14,807$3$1,5980.00012%
Winter Weather$22,731,985,801$30,090,33491,072$162,040$40$445,5670.000713%

Totals since the plan: not available. No county-level plan row in FEMA data, so there is no approval date to count from.

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

MeasureValue
Population91,072
Building value (total, not at risk)$22,731,989,798
Agriculture value (total, not at risk)$30,090,334
NRI risk rating (all hazards)Relatively Moderate
Expected annual loss, buildings and agriculture, all hazards$44,436,657
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)$5,984,855
Social vulnerability ratingRelatively Low
Community resilience ratingRelatively High
NRI versionDecember 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

DefinitionPropertiesSevere repetitive lossProperties
Repetitive loss, FMA definition (44 CFR 77.2)2Severe repetitive loss, FMA definition (44 CFR 77.2)3
Repetitive loss, NFIP insurance definition31Severe repetitive loss, NFIP insurance definition2

The state NFIP coordinator's list, the source FEMA's Handbook names, often uses the NFIP insurance definition (second row).

Repeat-flood properties: county total and NFIP communities

Sources: 1, 4

ScopeRL, FMApropertiesSRL, FMApropertiesRL, NFIPpropertiesSRL, NFIPpropertiesAny categorypropertiesMitigatedpropertiesCurrently insuredproperties
County total233123104
of which: Ashland town0020200
of which: Bath town0010100
of which: Bridgewater town0010100
of which: Campton town0131300
of which: Canaan town0020201
of which: Franconia town0111100
of which: Hanover town0010101
of which: Holderness town0070702
of which: Lebanon city0010100
of which: Lisbon town0020200
of which: Littleton town0030300
of which: Plymouth town0020200
of which: Thornton town2150500

Repeat-flood properties by jurisdiction in the plan (NFIP community)

Sources: 1, 4

JurisdictionNFIP community IDRL, FMApropertiesSRL, FMApropertiesRL, NFIPpropertiesSRL, NFIPpropertiesAny categorypropertiesMitigatedpropertiesCurrently insuredproperties
Lebanon city3300610010100
Alexandria town3300410000000
Ashland town3300420020200
Bath town3300430010100
Benton town3300440000000
Bethlehem town3300450000000
Bridgewater town3300460010100
Bristol town3300470000000
Campton town3300480131300
Canaan town3300490020201
Dorchester town3300500000000
Easton town3300510000000
Ellsworth town3302050000000
Enfield town3300520000000
Franconia town3300530111100
Grafton town3300540000000
Groton town3300550000000
Hanover town3300560010101
Haverhill town3300570000000
Hebron town3300580000000
Holderness town3300590070702
Landaff town3300600000000
Lincoln town3300620000000
Lisbon town3300630020200
Littleton town3300640030300
Lyman town3300660000000
Lyme town3300670000000
Monroe town3300680000000
Orange town3300690000000
Orford town3300700000000
Piermont town3300710000000
Plymouth town3300720020200
Rumney town3300730000000
Sugar Hill town3300740000000
Thornton town3300752150500
Warren town3301680000000
Waterville Valley town3300770000000
Wentworth town3300780000000
Woodstock town3300790000000

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 groupRL, FMApropertiesSRL, FMApropertiesRL, NFIPpropertiesSRL, NFIPpropertiesAny categorypropertiesMitigatedpropertiesCurrently insuredproperties
single-family residential011511503
2 to 4 unit residential0030301
other residential0000000
non-residential221311300
not reported0000000

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 29 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):

  1. FEMA, OpenFEMA HazardMitigationPlanStatuses v1, version 2026-09-29T134039Z, pulled 2026-09-30, https://www.fema.gov/api/open/v1/HazardMitigationPlanStatuses (API)
  2. FEMA, OpenFEMA DisasterDeclarationsSummaries v2, version 2026-09-29T162832Z, pulled 2026-09-30, https://www.fema.gov/api/open/v2/DisasterDeclarationsSummaries (API)
  3. FEMA, OpenFEMA PublicAssistanceFundedProjectsSummaries v1, version 2026-09-29T150754Z, pulled 2026-09-30, https://www.fema.gov/api/open/v1/PublicAssistanceFundedProjectsSummaries (API)
  4. FEMA, OpenFEMA NfipMultipleLossProperties v1, version 2026-08-04T164045Z, pulled 2026-09-30, https://www.fema.gov/api/open/v1/NfipMultipleLossProperties (API)
  5. 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)
  6. 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/
  7. 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
  8. 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). Grafton County, NH: risk-assessment baseline packet, release 2026-10 (data as of 2026-09-30; County FIPS 33009). Automated baseline. https://hazardplain.org/nh/33009/ 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: [email protected]