Fergus County, Montana: hazard risk
FEMA rates Fergus County's overall risk Relatively Low (score 45.1 of 100, higher than 45% of rated U.S. counties); 2 of its 14 hazards are rated Relatively High or Very High, led by winter weather, cold wave. Its storm record holds 1,027 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 | 91.8 | $442K |
| Cold Wave | Relatively High | 91.8 | $7.8M |
| Lightning | Relatively Moderate | 69.0 | $461K |
| Wildfire | Relatively Low | 80.4 | $404K |
| Landslide | Relatively Low | 71.2 | $6K |
| Riverine Flooding | Relatively Low | 36.5 | $4.1M |
| Drought | Relatively Low | 31.8 | $30K |
| Hail | Very Low | 27.3 | $102K |
| Earthquake | Very Low | 25.9 | $46K |
| Avalanche | Very Low | 25.0 | $61 |
| Heat Wave | Very Low | 20.3 | $61K |
| Tornado | Very Low | 15.7 | $149K |
| Ice Storm | Very Low | 11.4 | $6K |
| Strong Wind | Very Low | 8.6 | $59K |
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. |
|---|---|---|---|---|---|
| High wind and dust storms | 305 | 0 | – | 21st of 56 | 935th of 3,080 |
| Hail | 251 | 0 | $2.4M | 23rd of 56 | 2622nd of 3,080 |
| Severe thunderstorm wind | 195 | 0 | $1.4M | 27th of 56 | 2707th of 3,080 |
| Winter storms | 172 | 1 | $365K | 43rd of 56 | 2493rd of 3,077 |
| Extreme cold | 27 | 0 | – | 38th of 56 | 2358th of 3,076 |
| Tornadoes | 27 | 0 | $7.5M | 6th of 56 | 2607th of 3,080 |
| Heavy rain | 21 | 0 | – | 19th of 56 | 1703rd of 3,080 |
| Floods | 16 | 0 | $392K | 47th of 56 | 2983rd of 3,080 |
| Wildfires | 6 | 0 | – | 34th of 56 | 1093rd of 2,972 |
Source: NOAA NCEI Storm Events Database, 1950 to 2026-06-30; damage in 2025 dollars. Search the record at NCEI.
The full Fergus County record: every hazard by year and month, the deadliest events and FEMA's declarations.