Washington County, Utah: hazard risk

FEMA rates Washington County's overall risk Relatively Moderate (score 92.8 of 100, higher than 92% of rated U.S. counties); 5 of its 15 hazards are rated Relatively High or Very High, led by lightning, wildfire, landslide. Its storm record holds 850 events since 1950.

FEMA's rating for each hazard

These are FEMA's county-wide model ratings and this county's storm record. They are not an assessment of any property, address or building, and not insurance advice: a property's risk depends on its own elevation, construction and location.

FEMA gives each hazard its own rating, and a rating does not follow the score from one hazard to the next: a hazard with a higher score can carry a lower rating than another. The table sorts by FEMA's rating, then by score (0 to 100, the county against every other county for that hazard).

National Risk Index (December 2025), Washington County, by FEMA's rating, then score
HazardRisk ratingScoreExpected annual loss
LightningVery High99.2$5.7M
WildfireRelatively High99.8$68M
LandslideRelatively High98.6$1.2M
Riverine FloodingRelatively High93.4$66M
AvalancheRelatively High86.7$1.4M
Heat WaveRelatively Moderate90.8$3.7M
EarthquakeRelatively Low81.1$2.1M
Ice StormRelatively Low52.2$109K
Winter WeatherRelatively Low47.3$68K
DroughtRelatively Low38.8$69K
Volcanic ActivityVery Low65.5$74
Strong WindVery Low13.4$127K
TornadoVery Low6.0$31K
HailVery Low5.6$17K
Cold WaveVery Low5.0$18K

Source: FEMA National Risk Index, December 2025 release. A model of future loss, not a count of past events. FEMA's National Risk Index map.

What the record holds

Storm records by hazard, with the county's rank by days with a record per 1,000 sq mi over each hazard's complete period
HazardRecordsDeathsDamageRank in stateRank in U.S.
Winter storms3086$1.9M17th of 291447th of 3,077
Floods30027$525M1st of 29885th of 3,080
Severe thunderstorm wind820$442K8th of 292712th of 3,080
High wind and dust storms811$6.0M15th of 291412th of 3,080
Hail260$16K8th of 292833rd of 3,080
Heavy rain160$4K4th of 291347th of 3,080
Heat86–4th of 292136th of 3,076
Landslides and avalanches83$16M17th of 29201st of 2,278
Wildfires80$40M13th of 29670th of 2,972
Extreme cold50$177K13th of 292736th of 3,076
Lightning40$499K9th of 292030th of 3,080
Tornadoes40$8111th of 292846th of 3,080

Source: NOAA NCEI Storm Events Database, 1950 to 2026-06-30; damage in 2025 dollars. Search the record at NCEI.

The full Washington County record: every hazard by year and month, the deadliest events and FEMA's declarations.

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