Sheridan County, Wyoming: hazard risk
FEMA rates Sheridan County's overall risk Relatively Low (score 65.2 of 100, higher than 65% of rated U.S. counties); 1 of its 15 hazards are rated Relatively High or Very High, led by winter weather. Its storm record holds 815 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).
| Hazard | Risk rating | Score | Expected annual loss |
|---|---|---|---|
| Winter Weather | Relatively High | 93.9 | $608K |
| Wildfire | Relatively Moderate | 93.9 | $2.8M |
| Avalanche | Relatively Moderate | 80.8 | $457K |
| Cold Wave | Relatively Moderate | 77.1 | $3.2M |
| Riverine Flooding | Relatively Moderate | 74.4 | $17M |
| Lightning | Relatively Moderate | 68.9 | $498K |
| Landslide | Relatively Low | 76.3 | $11K |
| Earthquake | Relatively Low | 65.5 | $649K |
| Hail | Relatively Low | 60.8 | $407K |
| Heat Wave | Very Low | 33.5 | $172K |
| Drought | Very Low | 23.0 | $8K |
| Tornado | Very Low | 22.2 | $303K |
| Strong Wind | Very Low | 15.9 | $140K |
| Ice Storm | Very Low | 14.1 | $9K |
| Volcanic Activity | Very Low | 11.1 | $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
| Hazard | Records | Deaths | Damage | Rank in state | Rank in U.S. |
|---|---|---|---|---|---|
| Winter storms | 298 | 1 | $2K | 3rd of 23 | 1698th of 3,077 |
| Hail | 217 | 0 | $102K | 8th of 23 | 2508th of 3,080 |
| Severe thunderstorm wind | 123 | 0 | $24K | 6th of 23 | 2670th of 3,080 |
| High wind and dust storms | 115 | 0 | – | 10th of 23 | 1069th of 3,080 |
| Floods | 25 | 0 | $863K | 4th of 23 | 2760th of 3,080 |
| Heavy rain | 11 | 0 | – | 2nd of 23 | 1699th of 3,080 |
| Tornadoes | 10 | 0 | $290K | 14th of 23 | 2708th of 3,080 |
| Wildfires | 7 | 0 | – | 8th of 23 | 739th of 2,972 |
| Drought | 2 | 0 | – | 1st of 23 | 2474th of 3,063 |
| Landslides and avalanches | 2 | 1 | – | 10th of 23 | 372nd of 2,278 |
| Lightning | 1 | 1 | – | 13th of 23 | 2375th 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 Sheridan County record: every hazard by year and month, the deadliest events and FEMA's declarations.