Sublette County, Wyoming: hazard risk

FEMA rates Sublette County's overall risk Very Low (score 21.6 of 100, higher than 21% of rated U.S. counties); 1 of its 15 hazards are rated Relatively High or Very High, led by avalanche. Its storm record holds 916 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), Sublette County, by FEMA's rating, then score
HazardRisk ratingScoreExpected annual loss
AvalancheRelatively High90.5$1.9M
LandslideRelatively Moderate93.7$105K
LightningRelatively Moderate79.1$738K
WildfireRelatively Low87.7$1.1M
EarthquakeRelatively Low76.2$1.3M
Riverine FloodingVery Low21.4$2.7M
DroughtVery Low20.4$5K
Cold WaveVery Low19.7$231K
Volcanic ActivityVery Low19.5$0
Ice StormVery Low7.7$4K
HailVery Low5.9$17K
TornadoVery Low5.8$26K
Strong WindVery Low3.5$21K
Winter WeatherVery Low3.2$2K
Heat WaveNo Rating0.0$0

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 storms5980$18K11th of 232103rd of 3,077
High wind and dust storms740$886K20th of 232269th of 3,080
Landslides and avalanches6541$86K2nd of 2370th of 2,278
Severe thunderstorm wind570$939K23rd of 232882nd of 3,080
Extreme cold330–16th of 232532nd of 3,076
Wildfires270$12M5th of 23582nd of 2,972
Hail180–21st of 232974th of 3,080
Floods110$80K19th of 233033rd of 3,080
Tornadoes80$24K20th of 232847th of 3,080
Heat70–6th of 232290th of 3,076
Lightning41$61K6th of 232298th 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 Sublette County record: every hazard by year and month, the deadliest events and FEMA's declarations.

Next