Summary
Plan status as of 2026-09-30: Approved, expires 2028-04-17. Plan: Riverside County (FEMA plan 109847), approved 2023-04-18.
Since the plan was approved on 2023-04-18: 4 new hazard declarations (4 incidents): DR-4750-CA (Tropical Storm Hilary), FM-5515-CA (Hawarden Fire), FM-5538-CA (Airport Fire), FM-5636-CA (Bain Fire).
NOAA Storm Events records since that date: 183 records (data through 2026-06-30).
Highest expected annual loss (FEMA National Risk Index, modeled total; see B1-a): Inland Flooding ($1,127,003,661 a year), Earthquake ($763,784,550) and Wildfire ($346,642,805).
Repetitive-loss flood properties now: FMA RL 2, SRL 4 (44 CFR 77.2); any definition: 69.
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
- Status:
- Approved, expires 2028-04-17
- Plan:
- Riverside County (FEMA plan 109847)
- Approved:
- 2023-04-18
- Days to expiry:
- 565
What changed since your last plan (approved 2023-04-18)
- New federal declarations:
- 4 new hazard declarations (4 incidents): DR-4750-CA (Tropical Storm Hilary), FM-5515-CA (Hawarden Fire), FM-5538-CA (Airport Fire), FM-5636-CA (Bain Fire)
- Storm Events records since approval:
- 183 records (data through 2026-06-30)
- Repetitive loss now:
- FMA RL 2, SRL 4 (44 CFR 77.2); any definition: 69
- Repeat-flood change:
- this release sets the baseline count.
Sources: 1, 2, 4, 6 (numbered list at the end)
Plan status for every jurisdiction listed in this county: 40 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
| Jurisdiction | Type | Status | Plan | Approved | Expires | Days to expirynegative = days since expiry | Notes |
|---|---|---|---|---|---|---|---|
| Riverside County | County | Approved, expires 2028-04-17 | Riverside County (FEMA plan 109847) | 2023-04-18 | 2028-04-17 | 565 | |
| Banning city | City | Approved, expires 2028-04-17 | Riverside County (FEMA plan 109847) | 2023-04-18 | 2028-04-17 | 565 | this jurisdiction approved 2024-08-08 |
| Beaumont city | City | Approved, expires 2028-04-17 | Riverside County (FEMA plan 109847) | 2023-04-18 | 2028-04-17 | 565 | this jurisdiction approved 2024-01-19 |
| Blythe city | City | Approved, expires 2028-04-17 | Riverside County (FEMA plan 109847) | 2023-04-18 | 2028-04-17 | 565 | this jurisdiction approved 2025-01-07 |
| Calimesa city | City | Approved, expires 2028-04-17 | Riverside County (FEMA plan 109847) | 2023-04-18 | 2028-04-17 | 565 | this jurisdiction approved 2024-04-10 |
| Cathedral City city | City | Approved, expires 2030-10-06 | Cathedral City (FEMA plan 111095) | 2025-10-07 | 2030-10-06 | 1,467 | |
| Coachella city | City | Approved, expires 2028-04-17 | Riverside County (FEMA plan 109847) | 2023-04-18 | 2028-04-17 | 565 | this jurisdiction approved 2024-03-15 |
| Corona city | City | Approved, expires 2028-04-17 | Riverside County (FEMA plan 109847) | 2023-04-18 | 2028-04-17 | 565 | this jurisdiction approved 2024-10-07 |
| Desert Hot Springs city | City | Approved, expires 2028-04-17 | Riverside County (FEMA plan 109847) | 2023-04-18 | 2028-04-17 | 565 | this jurisdiction approved 2024-10-07 |
| Eastvale city | City | Approved, expires 2028-04-17 | Riverside County (FEMA plan 109847) | 2023-04-18 | 2028-04-17 | 565 | this jurisdiction approved 2023-11-22 |
| Indian Wells city | City | Approved, expires 2028-04-17 | Riverside County (FEMA plan 109847) | 2023-04-18 | 2028-04-17 | 565 | this jurisdiction approved 2024-03-04 |
| Indio city | City | Approved, expires 2028-04-17 | Riverside County (FEMA plan 109847) | 2023-04-18 | 2028-04-17 | 565 | this jurisdiction approved 2024-10-08 |
| Jurupa Valley city | City | Approved, expires 2028-04-17 | Riverside County (FEMA plan 109847) | 2023-04-18 | 2028-04-17 | 565 | this jurisdiction approved 2023-11-22 |
| La Quinta city | City | Approved, expires 2028-04-17 | Riverside County (FEMA plan 109847) | 2023-04-18 | 2028-04-17 | 565 | this jurisdiction approved 2024-08-01 |
| Lake Elsinore city | City | Approved, expires 2028-04-17 | Riverside County (FEMA plan 109847) | 2023-04-18 | 2028-04-17 | 565 | this jurisdiction approved 2024-06-14 |
| Menifee city | City | Approved, expires 2028-03-23 | Menifee, City of (FEMA plan 108213) | 2023-03-24 | 2028-03-23 | 540 | |
| Moreno Valley city | City | Approved, expires 2028-04-17 | Riverside County (FEMA plan 109847) | 2023-04-18 | 2028-04-17 | 565 | this jurisdiction approved 2023-08-02 |
| Murrieta city | City | Approved, expires 2028-04-17 | Riverside County (FEMA plan 109847) | 2023-04-18 | 2028-04-17 | 565 | this jurisdiction approved 2024-10-10 |
| Norco city | City | Approved, expires 2028-04-17 | Riverside County (FEMA plan 109847) | 2023-04-18 | 2028-04-17 | 565 | this jurisdiction approved 2024-04-08 |
| Palm Desert city | City | Approved, expires 2028-04-17 | Riverside County (FEMA plan 109847) | 2023-04-18 | 2028-04-17 | 565 | this jurisdiction approved 2024-07-08 |
| Palm Springs city | City | Approved, expires 2028-04-17 | Riverside County (FEMA plan 109847) | 2023-04-18 | 2028-04-17 | 565 | this jurisdiction approved 2024-04-30 |
| Perris city | City | Approved, expires 2028-04-17 | Riverside County (FEMA plan 109847) | 2023-04-18 | 2028-04-17 | 565 | this jurisdiction approved 2024-05-07 |
| Rancho Mirage city | City | Approved, expires 2028-04-17 | Riverside County (FEMA plan 109847) | 2023-04-18 | 2028-04-17 | 565 | this jurisdiction approved 2024-09-23 |
| Riverside city | City | Approved, expires 2028-04-17 | Riverside County (FEMA plan 109847) | 2023-04-18 | 2028-04-17 | 565 | this jurisdiction approved 2025-04-07 |
| Temecula city | City | Approved, expires 2028-04-17 | Riverside County (FEMA plan 109847) | 2023-04-18 | 2028-04-17 | 565 | this jurisdiction approved 2023-08-02 |
| Wildomar city | City | Approved, expires 2028-04-17 | Riverside County (FEMA plan 109847) | 2023-04-18 | 2028-04-17 | 565 | this jurisdiction approved 2023-01-19 |
| Beaumont Unified School District | School/School District | Approved, expires 2028-04-17 | Riverside County (FEMA plan 109847) | 2023-04-18 | 2028-04-17 | 565 | this jurisdiction approved 2023-09-07 |
| Hemet Unified School District | School/School District | Approved, expires 2028-04-17 | Riverside County (FEMA plan 109847) | 2023-04-18 | 2028-04-17 | 565 | this jurisdiction approved 2024-04-18 |
| San Jacinto Unified School District | School/School District | Approved, expires 2028-04-17 | Riverside County (FEMA plan 109847) | 2023-04-18 | 2028-04-17 | 565 | this jurisdiction approved 2024-10-31 |
| Coachella Valley Water District | Water/Sewer Authority | Approved, expires 2029-04-09 | Coachella Valley Water District (FEMA plan 109610) | 2024-04-10 | 2029-04-09 | 922 | |
| Eastern Municipal Water District | Water/Sewer Authority | Approved, expires 2029-11-12 | Eastern Municipal Water District (FEMA plan 109662) | 2024-11-13 | 2029-11-12 | 1,139 | |
| Elsinore Valley Municipal Water District | Water/Sewer Authority | Approved, expires 2027-10-20 | Elsinore Valley Municipal Water District (FEMA plan 108429) | 2022-10-21 | 2027-10-20 | 385 | |
| Idyllwild Fire Protection District | Fire/EMS District | Approved, expires 2028-04-17 | Riverside County (FEMA plan 109847) | 2023-04-18 | 2028-04-17 | 565 | this jurisdiction approved 2024-11-13 |
| Imperial Irrigation District | Water/Sewer Authority | Approved, expires 2030-10-07 | Imperial Irrigation District (FEMA plan 111027) | 2025-10-08 | 2030-10-07 | 1,468 | |
| Joshua Basin Water District | Water/Sewer Authority | Approved, expires 2029-09-09 | Joshua Basin Water District (FEMA plan 110064) | 2024-09-10 | 2029-09-09 | 1,075 | |
| Jurupa Community Services District | Community Services District | Expired on 2026-04-28 | Jurupa Community Services District (FEMA plan 107043) | 2021-04-29 | 2026-04-28 | -155 | |
| Mission Springs Water District | Water/Sewer Authority | Approved, expires 2027-05-19 | Mission Springs Water District (FEMA plan 108103) | 2022-05-20 | 2027-05-19 | 231 | |
| Rancho California Water District | Water/Sewer Authority | Approved, expires 2028-04-17 | Riverside County (FEMA plan 109847) | 2023-04-18 | 2028-04-17 | 565 | this jurisdiction approved 2023-11-22 |
| Rubidoux Community Services District | Special District | Approved, expires 2031-06-02 | Rubidoux Community Service District (FEMA plan 111803) | 2026-06-03 | 2031-06-02 | 1,706 | |
| Western Municipal Water District | Water/Sewer Authority | Approved, expires 2028-04-17 | Riverside County (FEMA plan 109847) | 2023-04-18 | 2028-04-17 | 565 | this jurisdiction approved 2024-04-12 |
Plan 109847 covers 2 other participants: Morongo Band of Mission Indians, California; Twenty-Nine Palms Band of Mission Indians of California.
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 | Very High | Very High | $1,118,828,946 | $419,791 | $7,754,924 | $1,127,003,661 | 430 | |
| 2 | Earthquake | Very High | Very High | $582,072,226 | n/a | $181,712,324 | $763,784,550 | Storm Events does not record earthquakes. | |
| 3 | Wildfire | Very High | Very High | $327,560,330 | $28,066 | $19,054,409 | $346,642,805 | 220 | |
| 4 | Heat Wave | Relatively High | Relatively High | $23,141 | $527,804 | $17,841,678 | $18,392,623 | 159 | |
| 5 | Tornado | Relatively Moderate | Relatively Moderate | $4,435,036 | $2,300 | $1,416,856 | $5,854,192 | 20 | |
| 6 | Landslide | Relatively High | Relatively Moderate | $1,062,136 | n/a | $15,188 | $1,077,324 | 35 | |
| 7 | Hail | Relatively Moderate | Relatively Moderate | $949,696 | $6,151 | $33,863 | $989,710 | 22 | |
| 8 | Lightning | Relatively Moderate | Relatively Moderate | $14,180 | n/a | $782,857 | $797,037 | 35 | |
| 9 | Strong Wind | Relatively Moderate | Relatively Moderate | $316,978 | $10,420 | $286,557 | $613,956 | 612 | Includes 405 High Wind and 63 Strong Wind records (NOAA non-thunderstorm wind types, outside NRI's Strong Wind definition). |
| 10 | Drought | Relatively Low | Relatively Low | n/a | $220,571 | n/a | $220,571 | 26 | |
| 11 | Cold Wave | Very Low | Relatively Low | $638 | $67,121 | $71,095 | $138,854 | 16 | Includes 7 Frost/Freeze records (outside NRI's Cold Wave definition; counted in this table and in B1-d, not in the B1-e descriptor). |
| 12 | Winter Weather | Relatively Moderate | Relatively Moderate | $1,311 | under $1 | $117,652 | $118,964 | 99 | |
| 13 | Hurricane | Very Low | Very Low | $966 | $1,706 | $0 | $2,672 | 1 | |
| 14 | Avalanche | Very Low | Very Low | $19 | n/a | $633 | $652 | 1 | |
| 15 | Volcanic Activity | Very Low | Very Low | under $1 | n/a | $72 | $72 | 0 | No recorded events in Storm Events since 1996 (data through 2026-06-30). |
| Coastal Flooding | Not Applicable | Not Applicable | 0 | Declared 2 times; no Storm Events record of this type. |
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 volcanic activity 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: ice storm and tsunami. 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, 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
| Hazard | Highest-rated census tractsNRI risk rating, score 0 to 100 |
|---|---|
| Avalanche | tract 456.17 (Very Low, 46.9); tract 472.02 (Very Low, 46.7); tract 444.03 (Very Low, 45.5) |
| Coastal Flooding | no tract has a National Risk Index rating for this hazard |
| Earthquake | tract 303 (Very High, 100.0); tract 406.18 (Very High, 99.8); tract 445.05 (Very High, 99.7) |
| Hurricane | tract 459 (Very Low, 31.7); tract 470 (Very Low, 27.6); tract 444.03 (Very Low, 19.0) |
| Landslide | tract 469 (Very High, 100.0); tract 444.05 (Relatively High, 99.5); tract 444.03 (Relatively Moderate, 98.9) |
| Tornado | tract 406.18 (Relatively Moderate, 55.1); tract 512 (Relatively Moderate, 54.6); tract 426.25 (Relatively Low, 47.0) |
| Volcanic Activity | tract 455.01 (Very Low, 75.1); tract 452.09 (Very Low, 74.5); tract 449.11 (Very Low, 73.5) |
| Wildfire | tract 432.72 (Very High, 100.0); tract 438.13 (Very High, 100.0); tract 438.23 (Very High, 100.0) |
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 456.17 is Census Tract 456.17). 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 |
|---|---|---|---|---|---|---|---|
| Avalanche | none (count and damage only) | 1 record, 2023 (1 zone-level) | No damage reported in 1 record. | Countywide (zone-level records). | Physical measure: in event narratives only (local data needed). | ||
| 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 | 9 records, 2002 to 2022 (9 zone-level) | 1 day to 6 days (median 2 days); 5 with a recorded value | 6 consecutive days, 2002-01-28 to 2002-02-02, zone-level | Countywide (zone-level records). | Wind chill: in event narratives only (local data needed). 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 | 7 records, 2004 to 2022 (7 zone-level) | Frost/Freeze, 2007-01-14, $68,850,000 crop damage (2007 dollars); NWS zone CAZ061 | Countywide (zone-level records). | Temperature: in event narratives only (local data needed). | ||
| Drought | U.S. Drought Monitor scale (D0 to D4) | 26 records, 2007 to 2009 (26 zone-level) | 167 days to 365 days (median 245 days); 3 with a recorded value | 365 days (12 months), 2009-01-01 to 2009-12-31, a run of 12 consecutive Storm Events drought records, zone-level | Drought, 2007-07-01, property not reported; $2,000,000 crops, reported for the zone (2007 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. |
| Earthquake | Modified Mercalli (local data) | 0 | Storm Events does not record earthquakes; the USGS earthquake catalog is the source. | ||||
| Hail | hail size (inches) | 31 records, 1960 to 2025 | 0.5 in to 2.75 in (median 0.88 in); 30 with a recorded value | 2.75 in hail, 1960-09-02 | Hail, 2024-09-08, $20,000 property; $0 crops (2024 dollars) | Event records naming jurisdictions in the plan: Murrieta city (3 records), Indio city (2 records), Beaumont city (1 record), Calimesa city (1 record), Corona city (1 record), La Quinta city (1 record), Menifee city (1 record), Palm Desert city (1 record), Wildomar city (1 record). | |
| Excessive Heat, Heat | heat index (in event narratives) | 159 records, 1997 to 2025 (159 zone-level) | 1 day to 13 days (median 3 days); 89 with a recorded value | 13 consecutive days, 2024-06-30 to 2024-07-12, zone-level | Excessive Heat, 2019-08-04, $500,000 property; $0 crops, reported for the zone (2019 dollars) | Countywide (zone-level records). | Heat index: in event narratives only (local data needed). 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 | 1 record, 2023 (1 zone-level) | Strongest recorded: Tropical Storm record, 2023-08-20 to 2023-08-21, $0 property; $0 crops (2023 dollars); NWS zone CAZ057 | 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. | ||
| Flash Flood, Flood, Lakeshore Flood | damage and flood days (flood depth: FIRM) | 430 records, 1997 to 2025 (2 zone-level) | Flash Flood, 2019-02-14, $70,000,000 property; $0 crops (2019 dollars) | Event records naming jurisdictions in the plan: Palm Springs city (19 records), Cathedral City city (13 records), Temecula city (11 records), Perris city (10 records), Indio city (9 records), Moreno Valley city (9 records), Banning city (8 records), Coachella city (8 records), Palm Desert city (8 records), Calimesa city (7 records); and 13 more jurisdictions (see the Excel file). Zone-level records (2) 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) | 35 records, 2003 to 2025 (8 zone-level) | Debris Flow, 2005-02-20, $300,000 property; crops not reported (2005 dollars), 1 direct death (reported for the zone); NWS zone CAZ057 | Event records naming jurisdictions in the plan: Corona city (2 records), Murrieta city (2 records), Palm Desert city (2 records), Desert Hot Springs city (1 record), Indio city (1 record), La Quinta city (1 record). Zone-level records (8) apply countywide. | Physical measure: in event narratives only (local data needed). | ||
| Lightning | annualized frequency (the measure FEMA's Local Mitigation Planning Handbook names) | 35 records, 1996 to 2024 | Lightning, 2003-07-30, damage not reported, 1 direct death | Lightning, 2009-06-03, $105,000 property; $0 crops (2009 dollars) | Event records naming jurisdictions in the plan: Cathedral City city (3 records), Desert Hot Springs city (3 records), Banning city (2 records), Moreno Valley city (2 records), Palm Desert city (2 records), Palm Springs city (2 records), Corona city (1 record), Indio city (1 record), Murrieta city (1 record), Norco city (1 record); and 4 more jurisdictions (see the Excel file). | Storm Events lists lightning with damage or casualties; physical measure in event narratives only (local data needed). | |
| High Wind and Strong Wind (outside NRI's Strong Wind definition) | wind speed (kt and mph) | 468 records, 1996 to 2026 (466 zone-level) | 24 kt (28 mph) to 104 kt (120 mph) (median 58 kt (67 mph)); 466 with a recorded value | 104 kt (120 mph), measurement type not recorded, High Wind, 1999-12-03; NWS zone CAZ057 | High Wind, 2007-10-21, $35,000,000 property; $0 crops, reported for the zone (2007 dollars) | Event records naming jurisdictions in the plan: Moreno Valley city (1 record). Zone-level records (466) apply countywide. | |
| Thunderstorm Wind | wind speed (kt and mph) | 169 records, 1973 to 2026 | 26 kt (30 mph) to 88 kt (101 mph) (median 52 kt (60 mph)); 156 with a recorded value | 88 kt (101 mph), measurement type not recorded, Thunderstorm Wind, 1973-08-03 | Thunderstorm Wind, 2019-07-23, $8,000,000 property; $0 crops (2019 dollars) | Event records naming jurisdictions in the plan: Blythe city (13 records), Perris city (11 records), La Quinta city (5 records), Lake Elsinore city (4 records), Murrieta city (4 records), Banning city (3 records), Desert Hot Springs city (3 records), Menifee city (3 records), Palm Desert city (3 records), Palm Springs city (3 records); and 9 more jurisdictions (see the Excel file). | |
| Tornado | Enhanced Fujita (Fujita before Feb 2007) | 27 records, 1955 to 2022 | F/EF0 to F/EF3 (median F/EF0); 25 with a recorded value | F3 tornado, 1973-08-16, 33 yd wide, $25,000 property; crops not recorded (1973 dollars) | Tornado, 2015-08-06, $18,000,000 property; $0 crops (2015 dollars) | Event records naming jurisdictions in the plan: Lake Elsinore city (2 records), Perris city (2 records), Menifee city (1 record), Temecula city (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). |
| Volcanic Ash, Volcanic Ashfall | Volcanic Explosivity Index (local data) | 0 | Physical measure: in event narratives only (local data needed). | ||||
| Wildfire | acres burned (local data) | 220 records, 1996 to 2025 (124 zone-level) | Wildfire, 2024-09-09, $50,000,000 property; $0 crops (2024 dollars), 22 direct injuries (reported for the zone); NWS zone CAZ057 | Event records naming jurisdictions in the plan: Corona city (9 records), Moreno Valley city (8 records), Norco city (7 records), Banning city (6 records), Temecula city (6 records), Lake Elsinore city (5 records), Riverside city (4 records), Beaumont city (3 records), Calimesa city (3 records), Perris city (3 records); and 5 more jurisdictions (see the Excel file). Zone-level records (124) apply countywide. | Acres burned: in event narratives only (local data needed). | ||
| Winter Storm, Heavy Snow, Blizzard, Lake-Effect Snow, Winter Weather, Sleet | none in data (snowfall: local data) | 99 records, 1996 to 2024 (99 zone-level) | Winter Storm, 2023-03-01, $400,000 property; $0 crops (2023 dollars); NWS zone CAZ056 | Countywide (zone-level records). | Snow depth: in event narratives only (local data needed). |
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".
Storm Events records are more complete after 1996; before 1996 only Tornado (from 1950), Hail and Thunderstorm Wind (from 1955) exist. Zone-level records whose zone 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: 66 declarations covering 59 separate hazard incidents counted in this packet (declarations for the same incident count once; non-natural and evacuation-only declarations are not counted).
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 |
|---|---|---|---|---|---|---|---|---|
| 2026-05-20 | 2026-05-19 | FM-5636-CA | Fire management | Bain Fire | Wildfire | no Public Assistance recorded | new since last plan; within last 5 years | |
| 2024-09-11 | 2024-09-11 | FM-5538-CA | Fire management | Airport Fire | Wildfire | no Public Assistance recorded | new since last plan; within last 5 years | |
| 2024-07-21 | 2024-07-21 | FM-5515-CA | Fire management | Hawarden Fire | Wildfire | no Public Assistance recorded | new since last plan; within last 5 years | |
| 2023-11-21 | 2023-08-19 | DR-4750-CA | Major disaster | Tropical Storm Hilary | Hurricane (primary); also designated: Inland Flooding, Landslide | $18,380,081.77 | new since last plan; within last 5 years | |
| 2023-01-09 | 2023-01-08 | EM-3591-CA | Emergency | Severe Winter Storms, Flooding, and Mudslides | Inland Flooding (primary); also designated: Landslide, Winter Weather | no Public Assistance recorded | in the 12 months before plan approval; within last 5 years | |
| 2022-09-06 | 2022-09-05 | FM-5451-CA | Fire management | Fairview Fire | Wildfire | no Public Assistance recorded | in the 12 months before plan approval; within last 5 years | |
| 2020-10-26 | 2020-10-26 | FM-5381-CA | Fire management | Blue Ridge Fire | Wildfire | no Public Assistance recorded | ||
| 2020-08-02 | 2020-08-02 | FM-5325-CA | Fire management | Apple Fire | Wildfire | no Public Assistance recorded | ||
| 2020-03-22 | 2020-01-20 | DR-4482-CA | Major disaster | COVID-19 Pandemic | Non-natural, not counted | $90,748,254.22 | ||
| 2020-03-13 | 2020-01-20 | EM-3428-CA | Emergency | COVID-19 | Non-natural, not counted | no Public Assistance recorded | same incident as DR-4482 | |
| 2019-10-31 | 2019-10-31 | FM-5300-CA | Fire management | 46 Fire | Wildfire | no Public Assistance recorded | ||
| 2019-10-30 | 2019-10-30 | FM-5299-CA | Fire management | Hill Fire | Wildfire | no Public Assistance recorded | ||
| 2019-05-01 | 2019-02-13 | DR-4431-CA | Major disaster | Severe Winter Storms, Flooding, Landslides, and Mudslides | Inland Flooding; Landslide; Winter Weather | $26,773,966.58 | ||
| 2018-08-09 | 2018-08-09 | FM-5268-CA | Fire management | Holy Fire | Wildfire | no Public Assistance recorded | ||
| 2018-07-25 | 2018-07-25 | FM-5260-CA | Fire management | Cranston Fire | Wildfire | no Public Assistance recorded | ||
| 2017-12-08 | 2017-12-04 | EM-3396-CA | Emergency | Wildfires | Wildfire | no Public Assistance recorded | ||
| 2017-10-09 | 2017-10-09 | FM-5223-CA | Fire management | Canyon 2 Fire | Wildfire | no Public Assistance recorded | ||
| 2017-09-26 | 2017-09-25 | FM-5213-CA | Fire management | Canyon Fire | Wildfire | no Public Assistance recorded | ||
| 2017-03-16 | 2017-01-18 | DR-4305-CA | Major disaster | Severe Winter Storms, Flooding, and Mudslides | Inland Flooding (primary); also designated: Landslide, Winter Weather | $3,232,766.70 | ||
| 2013-08-08 | 2013-08-07 | FM-5041-CA | Fire management | Silver Fire | Wildfire | no Public Assistance recorded | ||
| 2013-08-06 | 2013-08-05 | FM-5040-CA | Fire management | Falls Fire | Wildfire | no Public Assistance recorded | ||
| 2013-05-01 | 2013-05-01 | FM-5023-CA | Fire management | Summit Fire | Wildfire | no Public Assistance recorded | ||
| 2011-01-26 | 2010-12-17 | DR-1952-CA | Major disaster | Severe Winter Storms, Flooding, and Debris and Mud Flows | Inland Flooding (primary); also designated: Winter Weather | $4,155,412.20 | ||
| 2010-03-08 | 2010-01-17 | DR-1884-CA | Major disaster | Severe Winter Storms, Flooding, and Debris and Mud Flows | Inland Flooding; Winter Weather | $1,611,790.43 | ||
| 2008-11-18 | 2008-11-13 | DR-1810-CA | Major disaster | Wildfires | Wildfire | $75,746.67 | ||
| 2008-11-15 | 2008-11-15 | FM-2792-CA | Fire management | Freeway Fire Complex | Wildfire | no Public Assistance recorded | same incident as DR-1810 | |
| 2007-10-24 | 2007-10-21 | DR-1731-CA | Major disaster | Wildfires, Flooding, Mud Flows, and Debris Flows | Wildfire | $377,332.54 | ||
| 2007-10-23 | 2007-10-21 | EM-3279-CA | Emergency | Wildfires | Wildfire | no Public Assistance recorded | same incident as DR-1731 | |
| 2007-03-13 | 2007-01-11 | DR-1689-CA | Major disaster | Severe Freeze | Cold Wave | PA not declared for this county | ||
| 2006-10-26 | 2006-10-26 | FM-2678-CA | Fire management | Esperanza Fire | Wildfire | no Public Assistance recorded | ||
| 2006-09-17 | 2006-09-16 | FM-2676-CA | Fire management | Orchard Fire | Wildfire | no Public Assistance recorded | ||
| 2006-02-06 | 2006-02-06 | FM-2630-CA | Fire management | Sierra Fire | Wildfire | no Public Assistance recorded | ||
| 2005-10-06 | 2005-10-05 | FM-2584-CA | Fire management | Woodhouse Fire | Wildfire | no Public Assistance recorded | ||
| 2005-09-13 | 2005-08-29 | EM-3248-CA | Emergency | Hurricane Katrina Evacuation | Hurricane: evacuation support, not a local hazard event; not counted | $233,086.19 | ||
| 2005-04-14 | 2005-02-16 | DR-1585-CA | Major disaster | Severe Storms, Flooding, Landslides, and Mud and Debris Flows | Inland Flooding; Landslide | $2,317,800.43 | ||
| 2005-02-04 | 2004-12-27 | DR-1577-CA | Major disaster | Severe Storms, Flooding, Debris Flows, and Mudslides | Inland Flooding; Landslide | $17,631,745.23 | ||
| 2004-07-18 | 2004-07-17 | FM-2533-CA | Fire management | Ca-Melton Wildfire-07-18-2004 | Wildfire | no Public Assistance recorded | ||
| 2004-07-14 | 2004-07-13 | FM-2530-CA | Fire management | Ca-Lakeview-07-14-2004 | Wildfire | no Public Assistance recorded | ||
| 2004-05-04 | 2004-05-03 | FM-2517-CA | Fire management | Ca-Cerritos Fire-5-04-2004 | Wildfire | no Public Assistance recorded | ||
| 2004-05-04 | 2004-05-02 | FM-2516-CA | Fire management | Ca-Eagle Fire-05-04-2004 | Wildfire | no Public Assistance recorded | ||
| 2004-04-26 | 2004-04-25 | FM-2515-CA | Fire management | Ca - Pleasure Fire - 04-25-2004 | Wildfire | no Public Assistance recorded | ||
| 2003-10-27 | 2003-10-21 | DR-1498-CA | Major disaster | Wildfires, Flooding, Mudflow and Debris Flow Directly Related T | Wildfire | $197,163.63 | ||
| 2003-10-26 | 2003-10-26 | FM-2507-CA | Fire management | Ca-Mountain Fire-10-26-2003 | Wildfire | no Public Assistance recorded | same incident as DR-1498 | |
| 2003-10-21 | 2003-10-21 | FM-2500-CA | Fire management | Pass Fire | Wildfire | no Public Assistance recorded | same incident as DR-1498 | |
| 2003-08-19 | 2003-08-18 | FM-2491-CA | Fire management | Ca-Locust Wildfire-08-19-2003 | Wildfire | no Public Assistance recorded | ||
| 2003-07-25 | 2003-07-25 | FM-2487-CA | Fire management | Canyon Fire | Wildfire | no Public Assistance recorded | ||
| 2003-07-03 | 2003-07-03 | FM-2475-CA | Fire management | Ca-Railroad Fire-07-03-2003 | Wildfire | no Public Assistance recorded | ||
| 1998-02-09 | 1998-02-02 | DR-1203-CA | Major disaster | Severe Winter Storms and Flooding | Inland Flooding; Winter Weather | no Public Assistance recorded | ||
| 1995-03-12 | 1995-02-13 | DR-1046-CA | Major disaster | Severe Winter Storms, Flooding Landslides, Mud Flow | Inland Flooding; Landslide; Winter Weather | no Public Assistance recorded | ||
| 1995-01-10 | 1995-01-03 | DR-1044-CA | Major disaster | Severe Winter Storms, Flooding, Landslides, Mud Flows | Inland Flooding; Landslide; Winter Weather | no Public Assistance recorded | ||
| 1993-10-28 | 1993-10-26 | DR-1005-CA | Major disaster | Fires, Mud/Landslides, Flooding, Soil Erosion | Wildfire (primary); also designated: Inland Flooding, Landslide | no Public Assistance recorded | ||
| 1993-02-03 | 1993-01-05 | DR-979-CA | Major disaster | Severe Winter Storm, Mud & Land Slides, & Flooding | Inland Flooding (primary); also designated: Landslide, Winter Weather | no Public Assistance recorded | ||
| 1992-07-02 | 1992-06-28 | DR-947-CA | Major disaster | Earthquake & Aftershocks | Earthquake | no Public Assistance recorded | ||
| 1991-02-11 | 1990-12-19 | DR-894-CA | Major disaster | Severe Freeze | Cold Wave | PA not declared for this county | ||
| 1990-06-30 | 1990-06-26 | DR-872-CA | Major disaster | Fires | Wildfire | PA not declared for this county | ||
| 1983-09-22 | 1983-08-15 | DR-690-CA | Major disaster | Flash Flooding | Inland Flooding | no Public Assistance recorded | ||
| 1983-07-01 | 1983-06-16 | DR-687-CA | Major disaster | Flooding | Inland Flooding | no Public Assistance recorded | ||
| 1983-02-09 | 1983-01-21 | DR-677-CA | Major disaster | Coastal Storms, Floods, Slides & Tornadoes | Coastal Flooding; Inland Flooding; Landslide; Tornado | no Public Assistance recorded | ||
| 1980-11-27 | 1980-11-27 | DR-635-CA | Major disaster | Brush & Timber Fires | Wildfire | no Public Assistance recorded | ||
| 1980-02-21 | 1980-01-08 | DR-615-CA | Major disaster | Severe Storms, Mudslides & Flooding | Inland Flooding (primary); also designated: Landslide | no Public Assistance recorded | ||
| 1979-07-27 | 1979-07-27 | DR-594-CA | Major disaster | Heavy Rains, Flash Floods & Mud Flows | Inland Flooding (primary); also designated: Landslide | no Public Assistance recorded | ||
| 1978-02-15 | 1978-02-15 | DR-547-CA | Major disaster | Coastal Storms, Mudslides & Flooding | Coastal Flooding (primary); also designated: Landslide | no Public Assistance recorded | ||
| 1976-09-21 | 1976-09-21 | DR-521-CA | Major disaster | Flooding, Tropical Storm Kathleen | Inland Flooding (primary); also designated: Hurricane | no Public Assistance recorded | ||
| 1969-01-26 | 1969-01-26 | DR-253-CA | Major disaster | Severe Storms & Flooding | Inland Flooding | no Public Assistance recorded | ||
| 1967-01-02 | 1967-01-02 | DR-223-CA | Major disaster | Severe Storms & Flooding | Inland Flooding | no Public Assistance recorded | ||
| 1965-12-07 | 1965-12-07 | DR-211-CA | Major disaster | Heavy Rains & Flooding | Inland Flooding | no Public Assistance recorded |
School districts and special districts in this county: $17,582,519.81 (included in the county total above). Public Assistance matched by applicant name to the school districts and special districts FEMA lists as plan participants in this county. They have no row of their own in the jurisdiction table, so their total is listed here. These dollars are already included in the county PA column of the declarations table (the FEMA record places each applicant in this county), so this line is not added to it.
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 |
|---|---|---|---|---|---|
| 1964-04-01 | 1964-04-01 | DR-169-CA | Major disaster | Seismic Sea Wave | Tsunami |
| 1963-12-21 | 1963-12-21 | DR-161-CA | Major disaster | Flood Due to Broken Dam | Other, not an NRI hazard; not counted |
| 1963-02-25 | 1963-02-25 | DR-145-CA | Major disaster | Severe Storms, Heavy Rains & Flooding | Inland Flooding |
| 1962-10-24 | 1962-10-24 | DR-138-CA | Major disaster | Severe Storms & Flooding | Inland Flooding |
| 1962-03-06 | 1962-03-06 | DR-122-CA | Major disaster | Floods | Inland Flooding |
| 1961-11-16 | 1961-11-16 | DR-119-CA | Major disaster | Fire (Los Angeles County) | Wildfire |
| 1958-04-04 | 1958-04-04 | DR-82-CA | Major disaster | Heavy Rainstorms & Flood | Inland Flooding |
| 1956-12-29 | 1956-12-29 | DR-65-CA | Major disaster | Forest Fire | Wildfire |
| 1955-12-23 | 1955-12-23 | DR-47-CA | Major disaster | Flood | Inland Flooding |
| 1954-02-05 | 1954-02-05 | DR-15-CA | Major disaster | Flood & Erosion | 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.
5 Fire Management declarations (1977-08-07 to 1988-09-13) FEMA filed as Statewide with no county; each names one local fire. Listed on the state page.
Public Assistance filed under this county for declarations that do not list it: 1 row, $51,656.25
Sources: 2, 3
| FEMA number | Declared | Title | Applicant | PA obligatedfederal share obligated, nominal dollars |
|---|---|---|---|---|
| DR-4699-CA | 2023-04-03 | Severe Winter Storms, Straight-Line Winds, Flooding, Landslides, and Mudslides | Coachella Valley Unified School District | $51,656.25 |
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
| 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 |
|---|---|---|---|---|---|---|---|---|
| Avalanche | 1 | 0 | 1 | 1 | 0 | 0 | 1996 to 2026-06-30 | |
| Coastal Flooding | 0 | 0 | 0 | 0 | 2 | 0 | 1996 to 2026-06-30 | No Storm Events records of this type; 2 federal declared incidents (see declarations table) |
| Cold Wave | 16 | 0 | 0 | 4 | 2 | 0 | 1996 to 2026-06-30 | Includes 7 Frost/Freeze records. |
| Drought | 26 | 0 | 0 | 0 | 0 | 0 | 1996 to 2026-06-30 | |
| Earthquake | 0 | 0 | 0 | 0 | 1 | 0 | Storm Events does not record earthquakes; the USGS earthquake catalog is the source. | |
| Hail | 31 | 5 | 0 | 5 | 0 | 0 | 1955 to 2026-06-30 | |
| Heat Wave | 159 | 30 | 15 | 51 | 0 | 0 | 1996 to 2026-06-30 | |
| Hurricane | 1 | 1 | 0 | 1 | 2 | 1 | 1996 to 2026-06-30 | |
| Inland Flooding | 430 | 54 | 52 | 113 | 22 | 1 | 1996 to 2026-06-30 | |
| Landslide | 35 | 1 | 8 | 9 | 14 | 1 | 1996 to 2026-06-30 | |
| Lightning | 35 | 1 | 1 | 2 | 0 | 0 | 1996 to 2026-06-30 | |
| Strong Wind | 637 | 61 | 46 | 137 | 0 | 0 | 1955 to 2026-06-30 | Includes 405 High Wind and 63 Strong Wind records. |
| Tornado | 27 | 0 | 2 | 2 | 1 | 0 | 1950 to 2026-06-30 | |
| Volcanic Activity | 0 | 0 | 0 | 0 | 0 | 0 | 1996 to 2026-06-30 | No recorded events, 1996 to 2026-06-30, NOAA NCEI Storm Events |
| Wildfire | 220 | 21 | 2 | 25 | 34 | 3 | 1996 to 2026-06-30 | |
| Winter Weather | 99 | 9 | 11 | 22 | 9 | 0 | 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 | Flags | Why listed |
|---|---|---|---|---|---|---|---|
| 2024-09-09 | Wildfire | $50,000,000 property; $0 crops, reported for the zone (2024 dollars) | 0, 22 | NWS zone CAZ057 (SANTA ANA MOUNTAINS AND FOOTHILLS), zone-level | new since last plan; within last 5 years | B1-c worst recorded: Wildfire | |
| 2024-06-30 | Excessive Heat | $0 property; $0 crops, reported for the zone (2024 dollars) | 0, 0 | NWS zone CAZ569 (PALO VERDE VALLEY), zone-level | new since last plan; within last 5 years | B1-c worst recorded: Excessive Heat, Heat | |
| 2019-02-14 | Flash Flood | $70,000,000 property; $0 crops (2019 dollars) | 0, 0 | EL CERRITO to DURANT | B1-c worst recorded: Flash Flood, Flood, Lakeshore Flood | ||
| 2007-09-01 | Excessive Heat | $0 property; $0 crops, reported for the zone (2007 dollars) | 4, 2 | NWS zone CAZ048 (SAN BERNARDINO AND RIVERSIDE COUNTY VALLEYS - THE INLAND EMPIRE), zone-level | deaths or injuries recorded | ||
| 2006-10-26 | Wildfire | $10,300,000 property; $0 crops, reported for the zone (2006 dollars) | 5, 0 | NWS zone CAZ056 (RIVERSIDE COUNTY MOUNTAINS), zone-level | deaths or injuries recorded | ||
| 2005-02-20 | Debris Flow | $300,000 property; crops not reported, reported for the zone (2005 dollars) | 1, 0 | NWS zone CAZ057 (NE ORANGE), zone-level | B1-c worst recorded: Debris Flow | ||
| 2003-07-30 | Lightning | damage not reported | 1, 0 | ROMOLAND | B1-c worst recorded: Lightning | ||
| 2000-03-08 | Flood | $60,000 property; crops not reported (2000 dollars) | 2, 4 | ELSINORE | deaths or injuries recorded | ||
| 1999-12-03 | High Wind | 104 kt (120 mph), measurement type not recorded | $20,000 property; crops not reported, reported for the zone (1999 dollars) | 0, 0 | NWS zone CAZ057 (SANTA ANA MOUNTAINS AND FOOTHILLS), zone-level | B1-c worst recorded: High Wind and Strong Wind | |
| 1973-08-16 | Tornado | F3, 33 yd wide | $25,000 property; crops not recorded (1973 dollars) | 0, 0 | location not recorded | B1-c worst recorded: Tornado | |
| 1973-08-03 | Thunderstorm Wind | 88 kt (101 mph), measurement type not recorded | damage not recorded (pre-1996 record) | 0, 0 | location not recorded | B1-c worst recorded: Thunderstorm Wind | |
| 1960-09-02 | Hail | 2.75 in | damage not recorded (pre-1996 record) | 0, 0 | location not recorded | B1-c worst recorded: Hail |
The full list is in the Excel file, sheet "B1-d Storm Events history" (1,717 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 |
|---|---|---|---|---|---|---|---|---|---|
| Avalanche | 0.01 | events per year | about 1 in 100 years | Possible | FEMA annualized frequency (modeled) | 0 | 1994 to 2023 (30 years) | see B1-f | 0.01 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. |
| Coastal Flooding | events per year at a location (modeled) | not shown | modeled | see B1-f | Not Applicable in NRI for this county; no descriptor. | ||||
| Cold Wave | 0.0125 | event-days per year | about 0.0125 days per year | Likely (from Storm Events: 5 of 30 years) | event-days in 5 of 30 years, 1996 to 2025 (16.7%) | 0.235 | 2005-11-12 to 2024-11-12 (19 years) | countywide | |
| Drought | 57.4 | event-days per year | about 57.4 days per year | Likely (from Storm Events: 3 of 30 years) | event-days in 3 of 30 years, 1996 to 2025 (10%) | 3,696 | 2000 to 2025 (25.25 years; D3 and D4 only) | countywide | |
| Earthquake | 0.118 | annual probability at a location | chance a given location in the county has at least minor-damage shaking in a year: 11.8% | not shown | modeled | see B1-f | No descriptor (Storm Events does not record earthquakes). | ||
| Hail | 0.084 | events per year | about 1 in 12 years | Possible | FEMA annualized frequency (modeled) | 3.2 (modeled) | 1986 to 2023 (38 years) | countywide | |
| Heat Wave | 13.8 | event-days per year | about 13.8 days per year | Likely (from Storm Events: 20 of 30 years) | event-days in 20 of 30 years, 1996 to 2025 (66.7%) | 115 | 2005-11-12 to 2024-11-12 (19 years) | countywide | |
| Hurricane | 0.0142 | events per year | about 1 in 70 years | Possible | FEMA annualized frequency (modeled) | 3 | 1851 to 2024 (Atlantic); 1949 to 2024 (Pacific) | see B1-f | NRI counts hurricane and tropical storm tracks passing within storm-force wind range; federal declarations are in B1-d. |
| Inland Flooding | 7.36 | event-days per year | about 7.36 days per year | Highly likely (from Storm Events: 29 of 30 years) | event-days in 29 of 30 years, 1996 to 2025 (96.7%) | 206 | 1996 to 2023 (28 years) | see B1-f | |
| Landslide | 21.8 | events per year (modeled) | about 21.8 per year | Highly likely | FEMA annualized frequency (modeled) | not shown | modeled | see B1-f | |
| Lightning | 13.8 | days per year with a strike | about 13.8 days per year | Highly likely | FEMA annualized frequency (modeled) | not shown | 1995 to 2023 (29 years; CONUS) | countywide | |
| Strong Wind | 0.229 | events per year | about 1 in 4 years | Likely | FEMA annualized frequency (modeled) | 9 | 1986 to 2023 (38 years) | countywide | |
| Tornado | 0.448 | events per year | about 1 in 2 years | Likely | FEMA annualized frequency (modeled) | not shown | 1950 to 2023 (EF2+); 1986 to 2023 (EF0-1) | see B1-f | |
| Volcanic Activity | 0.0001 | annual probability | about 1 in 10,000 years | Unlikely | FEMA annualized frequency (modeled) | not shown | modeled | see B1-f | |
| Wildfire | 0.0194 | annual probability at a location | chance a given location in the county burns in a year: 1.94% | Highly likely (from Storm Events: 28 of 30 years) | Storm Events records in 28 of 30 years, 1996 to 2025 (93.3%) | not shown | modeled | see B1-f | Descriptor from Storm Events, not NRI. |
| Winter Weather | 2.4 | event-days per year | about 2.4 days per year | Highly likely (from Storm Events: 29 of 30 years) | event-days in 29 of 30 years, 1996 to 2025 (96.7%) | 45.2 | 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 | 8 | 30 | 0.267 |
| Hail | 2.00 in+ | 1996 to 2025 | 0 | 30 | 0 |
| Thunderstorm Wind (counted as NRI Strong Wind) | 50-64 kt | 1996 to 2025 | 98 | 30 | 3.27 |
| Thunderstorm Wind (counted as NRI Strong Wind) | 65 kt+ | 1996 to 2025 | 12 | 30 | 0.4 |
| Thunderstorm Wind (counted as NRI Strong Wind) | unmeasured or below 50 kt | 1996 to 2025 | 33 | 30 | 1.1 |
| Tornado | EF0-1 | 1996 to 2025 | 18 | 30 | 0.6 |
| Tornado | EF2-3 | 1996 to 2025 | 1 | 30 | 0.0333 |
| Tornado | EF4-5 | 1996 to 2025 | 0 | 30 | 0 |
| Tornado | unrated (EFU) | 1996 to 2025 | 1 | 30 | 0.0333 |
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 | |||
| Avalanche | 23 of 518 | 35.5 | 41.8 | 46.9 | Very Low 23, Not Applicable 495 |
| Coastal Flooding | 0 of 518 | Not Applicable 518 | |||
| Cold Wave | 17 of 518 | 15.6 | 20.6 | 66.4 | Relatively Moderate 1, Relatively Low 8, Very Low 8, No Rating 501 |
| Drought | 170 of 518 | 66.8 | 72.2 | 94.8 | Relatively Moderate 2, Relatively Low 34, Very Low 134, No Rating 348 |
| Earthquake | 518 of 518 | 59.1 | 91.7 | 100.0 | Very High 83, Relatively High 287, Relatively Moderate 143, Relatively Low 5 |
| Hail | 518 of 518 | 3.7 | 27.8 | 63.4 | Relatively Low 45, Very Low 473 |
| Heat Wave | 518 of 518 | 1.7 | 46.4 | 88.5 | Relatively High 1, Relatively Moderate 122, Relatively Low 389, Very Low 6 |
| Hurricane | 518 of 518 | 9.3 | 10.6 | 31.7 | Very Low 518 |
| Inland Flooding | 518 of 518 | 1.3 | 91.2 | 100.0 | Very High 167, Relatively High 213, Relatively Moderate 98, Relatively Low 37, Very Low 3 |
| Landslide | 412 of 518 | 8.6 | 42.8 | 100.0 | Very High 1, Relatively High 1, Relatively Moderate 21, Relatively Low 61, Very Low 328, No Rating 106 |
| Lightning | 518 of 518 | 0.2 | 9.7 | 28.9 | Relatively Low 20, Very Low 498 |
| Strong Wind | 518 of 518 | 0.7 | 10.2 | 25.2 | Relatively Low 2, Very Low 516 |
| Tornado | 518 of 518 | 2.4 | 22.5 | 55.1 | Relatively Moderate 2, Relatively Low 81, Very Low 435 |
| Volcanic Activity | 87 of 518 | 40.3 | 60.1 | 75.1 | Very Low 87, No Rating 431 |
| Wildfire | 434 of 518 | 18.6 | 92.2 | 100.0 | Very High 69, Relatively High 91, Relatively Moderate 90, Relatively Low 106, Very Low 78, No Rating 84 |
| Winter Weather | 510 of 518 | 10.7 | 18.7 | 70.4 | Relatively Moderate 4, Relatively Low 276, Very Low 230, No Rating 8 |
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, 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 |
|---|---|---|---|---|---|---|
| Riverside County | County | Approved, expires 2028-04-17 | FMA RL 2, SRL 1; any 19 | $76,615,623.13 | 0 total; 0 since its plan | Includes $67,938,877.97 for declarations not counted as hazard incidents (DR-4482-CA, EM-3248-CA). |
| Banning city | City | Approved, expires 2028-04-17 | FMA RL 0, SRL 0; any 0 | $770,469.45 | 19 total; 2 since its plan | Includes $74,178.89 for declarations not counted as hazard incidents (DR-4482-CA). |
| Beaumont city | City | Approved, expires 2028-04-17 | FMA RL 0, SRL 0; any 0 | $517,124.26 | 7 total; 0 since its plan | Includes $46,015.36 for declarations not counted as hazard incidents (DR-4482-CA). |
| Blythe city | City | Approved, expires 2028-04-17 | FMA RL 0, SRL 0; any 0 | $15,015.92 | 16 total; 0 since its plan | Includes $15,015.92 for declarations not counted as hazard incidents (DR-4482-CA). |
| Calimesa city | City | Approved, expires 2028-04-17 | FMA RL 0, SRL 0; any 0 | $277,791.46 | 12 total; 0 since its plan | Includes $35,011.87 for declarations not counted as hazard incidents (DR-4482-CA). |
| Cathedral City city | City | Approved, expires 2030-10-06 | FMA RL 0, SRL 0; any 0 | $2,745,036.09 | 16 total; 0 since its plan | Includes $252,127.40 for declarations not counted as hazard incidents (DR-4482-CA). |
| Coachella city | City | Approved, expires 2028-04-17 | FMA RL 0, SRL 0; any 0 | $734,884.85 | 10 total; 4 since its plan | |
| Corona city | City | Approved, expires 2028-04-17 | FMA RL 0, SRL 0; any 9 | $1,082,697.43 | 19 total; 0 since its plan | |
| Desert Hot Springs city | City | Approved, expires 2028-04-17 | FMA RL 0, SRL 0; any 1 | $1,359,833.09 | 15 total; 0 since its plan | Includes $18,725.97 for declarations not counted as hazard incidents (DR-4482-CA). |
| Eastvale city | City | Approved, expires 2028-04-17 | FMA RL 0, SRL 0; any 0 | no Public Assistance recorded | 0 total; 0 since its plan | |
| Indian Wells city | City | Approved, expires 2028-04-17 | FMA RL 0, SRL 0; any 1 | $4,479,121.99 | 4 total; 0 since its plan | |
| Indio city | City | Approved, expires 2028-04-17 | FMA RL 0, SRL 0; any 0 | $1,375,373.27 | 15 total; 1 since its plan | Includes $122,160 for declarations not counted as hazard incidents (DR-4482-CA). |
| Jurupa Valley city | City | Approved, expires 2028-04-17 | FMA RL 0, SRL 0; any 0 | no Public Assistance recorded | 0 total; 0 since its plan | |
| La Quinta city | City | Approved, expires 2028-04-17 | FMA RL 0, SRL 0; any 2 | $410,454.21 | 12 total; 1 since its plan | Includes $60,650.78 for declarations not counted as hazard incidents (DR-4482-CA). |
| Lake Elsinore city | City | Approved, expires 2028-04-17 | FMA RL 0, SRL 2; any 8 | $563,119.63 | 18 total; 0 since its plan | |
| Menifee city | City | Approved, expires 2028-03-23 | FMA RL 0, SRL 0; any 0 | $335,120.02 | 7 total; 1 since its plan | |
| Moreno Valley city | City | Approved, expires 2028-04-17 | FMA RL 0, SRL 0; any 0 | $2,260,838.56 | 21 total; 1 since its plan | Includes $2,121,891.35 for declarations not counted as hazard incidents (DR-4482-CA). |
| Murrieta city | City | Approved, expires 2028-04-17 | FMA RL 0, SRL 0; any 1 | $223,700.27 | 18 total; 2 since its plan | Includes $100,744.05 for declarations not counted as hazard incidents (DR-4482-CA). |
| Norco city | City | Approved, expires 2028-04-17 | FMA RL 0, SRL 0; any 2 | $303,084.88 | 10 total; 0 since its plan | Includes $33,486.09 for declarations not counted as hazard incidents (DR-4482-CA). |
| Palm Desert city | City | Approved, expires 2028-04-17 | FMA RL 0, SRL 0; any 13 | $321,624.85 | 16 total; 3 since its plan | Includes $308,182.17 for declarations not counted as hazard incidents (DR-4482-CA). |
| Palm Springs city | City | Approved, expires 2028-04-17 | FMA RL 0, SRL 1; any 3 | $717,011.70 | 25 total; 0 since its plan | Includes $160,391.47 for declarations not counted as hazard incidents (DR-4482-CA). |
| Perris city | City | Approved, expires 2028-04-17 | FMA RL 0, SRL 0; any 0 | $563,085.60 | 27 total; 7 since its plan | Includes $404,995.17 for declarations not counted as hazard incidents (DR-4482-CA). |
| Rancho Mirage city | City | Approved, expires 2028-04-17 | FMA RL 0, SRL 0; any 7 | $9,143,083.63 | 4 total; 1 since its plan | Includes $8,725,364.87 for declarations not counted as hazard incidents (DR-4482-CA). |
| Riverside city | City | Approved, expires 2028-04-17 | FMA RL 0, SRL 0; any 2 | $4,590,698 | 12 total; 1 since its plan | Includes $2,021,247.83 for declarations not counted as hazard incidents (DR-4482-CA). |
| Temecula city | City | Approved, expires 2028-04-17 | FMA RL 0, SRL 0; any 0 | $1,105,309.34 | 20 total; 1 since its plan | Includes $125,321.17 for declarations not counted as hazard incidents (DR-4482-CA). |
| Wildomar city | City | Approved, expires 2028-04-17 | FMA RL 0, SRL 0; any 0 | $189,252.10 | 5 total; 1 since its plan | Includes $24,140 for declarations not counted as hazard incidents (DR-4482-CA). |
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.
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.
- 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 2023-04-18county-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 |
|---|---|---|---|---|---|---|---|---|---|---|---|
| Avalanche | $27,008,292 | n/a | 1 | $19 | n/a | $633 | under 0.0001% | ||||
| Coastal Flooding | Not Applicable in NRI for this county | ||||||||||
| Cold Wave | $4,828,141,565 | $62,237,679 | 18,787 | $638 | $67,121 | $71,095 | under 0.0001% | ||||
| Drought | n/a | $828,737,273 | n/a | n/a | $220,571 | n/a | 0.0266% (agriculture) | NRI has no building exposure for this hazard; agriculture shown | |||
| Earthquake | $792,597,444,699 | n/a | 2,418,185 | $582,072,226 | n/a | $181,712,324 | 0.0734% | ||||
| Hail | $470,055,458,576 | $1,200,000,752 | 2,416,838 | $949,696 | $6,151 | $33,863 | 0.000202% | $60,000 | |||
| Heat Wave | $470,055,458,576 | $1,200,000,752 | 2,416,838 | $23,141 | $527,804 | $17,841,678 | under 0.0001% | $10,000 | |||
| Hurricane | $470,055,458,576 | $1,200,000,752 | 2,416,838 | $966 | $1,706 | $0 | under 0.0001% | $0 | $18,380,081.77 | ||
| Inland Flooding | $469,961,831,147 | $194,897,479 | 43,599 | $1,118,828,946 | $419,791 | $7,754,924 | n/a (see note) | $90,000 | $18,380,081.77 | 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 | $17,269,733,273 | n/a | 84,234 | $1,062,136 | n/a | $15,188 | 0.00615% | $0 | $18,380,081.77 | ||
| Lightning | $470,055,458,576 | n/a | 2,416,838 | $14,180 | n/a | $782,857 | under 0.0001% | $1,000 | |||
| Strong Wind | $470,055,458,576 | $1,200,000,752 | 2,416,838 | $316,978 | $10,420 | $286,557 | under 0.0001% | $142,000 | $448,000 | Storm Events damage since the plan includes 6 zone-level High Wind records ($361,000) and 7 zone-level Strong Wind records ($87,000): NOAA non-thunderstorm wind types, outside NRI's Strong Wind definition. | |
| Tornado | $470,055,458,576 | $1,200,000,752 | 2,416,838 | $4,435,036 | $2,300 | $1,416,856 | 0.000944% | ||||
| Volcanic Activity | $470,055,458,576 | n/a | 2,416,838 | under $1 | n/a | $72 | under 0.0001% | ||||
| Wildfire | $50,336,067,625 | $582,262,424 | 370,831 | $327,560,330 | $28,066 | $19,054,409 | 0.651% | $83,350,000 | no Public Assistance recorded (3 declarations) | ||
| Winter Weather | $464,158,365,843 | $782,083,167 | 2,392,311 | $1,311 | under $1 | $117,652 | under 0.0001% | $0 |
Totals since 2023-04-18 (Storm Events through 2026-06-30): 77 county-coded records, 74 with a damage value recorded (including $0), $293,000; 106 zone-level records, 97 with a damage value recorded (including $0), $83,808,000 reported for the zone; Public Assistance: $18,380,081.77 on 4 counted declarations, 1 of them with Public Assistance.
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 | 2,416,838 |
| Building value (total, not at risk) | $470,055,458,576 |
| Agriculture value (total, not at risk) | $1,200,000,752 |
| NRI risk rating (all hazards) | Very High |
| Expected annual loss, buildings and agriculture, all hazards | $2,036,549,533 |
| 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) | $229,088,110 |
| Social vulnerability rating | Relatively Low |
| Community resilience rating | Very Low |
| 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) | 4 |
| Repetitive loss, NFIP insurance definition | 67 | Severe repetitive loss, NFIP insurance definition | 3 |
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 | 4 | 67 | 3 | 69 | 1 | 20 |
| of which: Riverside County (unincorporated area) | 2 | 1 | 19 | 1 | 19 | 0 | 11 |
| of which: Corona city | 0 | 0 | 9 | 0 | 9 | 0 | 4 |
| of which: Desert Hot Springs city | 0 | 0 | 1 | 0 | 1 | 0 | 1 |
| of which: Indian Wells city | 0 | 0 | 1 | 0 | 1 | 0 | 0 |
| of which: Norco city | 0 | 0 | 2 | 0 | 2 | 0 | 0 |
| of which: Palm Springs city | 0 | 1 | 2 | 1 | 3 | 0 | 1 |
| of which: Rancho Mirage city | 0 | 0 | 7 | 0 | 7 | 0 | 0 |
| of which: Riverside city | 0 | 0 | 2 | 0 | 2 | 0 | 0 |
| of which: Palm Desert city | 0 | 0 | 13 | 0 | 13 | 0 | 0 |
| of which: Lake Elsinore city | 0 | 2 | 7 | 1 | 8 | 1 | 1 |
| of which: La Quinta city | 0 | 0 | 2 | 0 | 2 | 0 | 2 |
| of which: Murrieta city | 0 | 0 | 1 | 0 | 1 | 0 | 0 |
| of which: Agua Caliente Band of Cahuilla Indians Tribe (community ID not in plan data) | 0 | 0 | 1 | 0 | 1 | 0 | 0 |
| Statewide, no county in FEMA's file | 0 | 1 | 3 | 0 | 4 | 1 | 0 |
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 |
|---|---|---|---|---|---|---|---|---|
| Riverside County | 060245 | 2 | 1 | 19 | 1 | 19 | 0 | 11 |
| Banning city | 060246 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
| Beaumont city | 060247 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
| Blythe city | 060248 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
| Calimesa city | 060740 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
| Cathedral City city | 060704 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
| Coachella city | 060249 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
| Corona city | 060250 | 0 | 0 | 9 | 0 | 9 | 0 | 4 |
| Desert Hot Springs city | 060251 | 0 | 0 | 1 | 0 | 1 | 0 | 1 |
| Eastvale city | 060155 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
| Indian Wells city | 060254 | 0 | 0 | 1 | 0 | 1 | 0 | 0 |
| Indio city | 060255 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
| Jurupa Valley city | 060286 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
| La Quinta city | 060709 | 0 | 0 | 2 | 0 | 2 | 0 | 2 |
| Lake Elsinore city | 060636 | 0 | 2 | 7 | 1 | 8 | 1 | 1 |
| Menifee city | 060176 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
| Moreno Valley city | 065074 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
| Murrieta city | 060751 | 0 | 0 | 1 | 0 | 1 | 0 | 0 |
| Norco city | 060256 | 0 | 0 | 2 | 0 | 2 | 0 | 0 |
| Palm Desert city | 060629 | 0 | 0 | 13 | 0 | 13 | 0 | 0 |
| Palm Springs city | 060257 | 0 | 1 | 2 | 1 | 3 | 0 | 1 |
| Perris city | 060258 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
| Rancho Mirage city | 060259 | 0 | 0 | 7 | 0 | 7 | 0 | 0 |
| Riverside city | 060260 | 0 | 0 | 2 | 0 | 2 | 0 | 0 |
| Temecula city | 060742 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
| Wildomar city | 060221 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
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 | 2 | 3 | 45 | 2 | 47 | 1 | 11 |
| 2 to 4 unit residential | 0 | 0 | 2 | 0 | 2 | 0 | 1 |
| other residential | 0 | 0 | 4 | 0 | 4 | 0 | 4 |
| non-residential | 0 | 1 | 16 | 1 | 16 | 0 | 4 |
| 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 65 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, organized by the items of FEMA's Local Mitigation Plan Review Tool, Element B. Each section heading names the item its tables support; the plan and FEMA's review decide whether the 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). Riverside County, CA: risk-assessment baseline packet, release 2026-10 (data as of 2026-09-30; County FIPS 06065). Automated baseline. https://hazardplain.org/ca/06065/ 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
Hazard Plain release 2026-10. As of 2026-09-30; Storm Events data through 2026-06-30. Automated baseline.