Cascade County, Montana: hazard risk

FEMA rates Cascade County's overall risk Relatively Moderate (score 83.1 of 100, higher than 83% 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 1,305 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), Cascade County, by FEMA's rating, then score
HazardRisk ratingScoreExpected annual loss
Winter WeatherVery High99.3$2.4M
Cold WaveRelatively High98.0$23M
Riverine FloodingRelatively Moderate83.4$25M
AvalancheRelatively Moderate80.3$457K
LightningRelatively Moderate72.9$604K
Strong WindRelatively Moderate60.9$829K
WildfireRelatively Low84.2$714K
LandslideRelatively Low71.9$8K
EarthquakeRelatively Low71.8$983K
HailRelatively Low53.4$336K
Heat WaveRelatively Low45.8$335K
DroughtRelatively Low33.4$39K
Ice StormVery Low23.9$24K
TornadoVery Low20.8$280K

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.
High wind and dust storms3892$505K9th of 56298th of 3,080
Severe thunderstorm wind2820$1.2M5th of 562544th of 3,080
Hail2530$8K15th of 562467th of 3,080
Winter storms2510$107K23rd of 561833rd of 3,077
Heavy rain370–1st of 56976th of 3,080
Floods332$648K22nd of 562756th of 3,080
Extreme cold250–32nd of 562067th of 3,076
Tornadoes120$4.7M16th of 562702nd of 3,080
Wildfires80–15th of 56706th of 2,972
Lightning40$27K4th of 562080th 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 Cascade County record: every hazard by year and month, the deadliest events and FEMA's declarations.

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