Fremont County, Wyoming: hazard risk

FEMA rates Fremont County's overall risk Relatively Low (score 59.7 of 100, higher than 59% of rated U.S. counties); 1 of its 15 hazards are rated Relatively High or Very High, led by lightning. Its storm record holds 1,945 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), Fremont County, by FEMA's rating, then score
HazardRisk ratingScoreExpected annual loss
LightningRelatively High83.9$774K
LandslideRelatively Moderate97.1$265K
WildfireRelatively Moderate92.6$1.9M
Winter WeatherRelatively Moderate84.4$232K
AvalancheRelatively Moderate81.0$392K
Cold WaveRelatively Moderate67.7$1.7M
EarthquakeRelatively Low86.2$2.7M
Riverine FloodingRelatively Low66.5$10M
HailRelatively Low36.5$138K
DroughtRelatively Low35.7$39K
Strong WindRelatively Low22.6$185K
Volcanic ActivityVery Low22.5$0
TornadoVery Low19.6$198K
Ice StormVery Low17.7$11K
Heat WaveVery Low15.1$32K

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 storms7291$983K16th of 232434th of 3,077
High wind and dust storms6240$777K8th of 23995th of 3,080
Severe thunderstorm wind2181$232K13th of 232788th of 3,080
Hail1370$2.9M16th of 232834th of 3,080
Floods661$23M11th of 232927th of 3,080
Extreme cold610–20th of 232669th of 3,076
Wildfires380$4.0M6th of 23601st of 2,972
Tornadoes230$2.5M16th of 232791st of 3,080
Heat220–7th of 232295th of 3,076
Landslides and avalanches84–8th of 23358th of 2,278
Lightning40$372K11th of 232365th of 3,080
Heavy rain10–12th of 232385th 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 Fremont County record: every hazard by year and month, the deadliest events and FEMA's declarations.

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