Blaine County, Montana: hazard risk

FEMA rates Blaine County's overall risk Relatively Low (score 45.9 of 100, higher than 45% of rated U.S. counties); 1 of its 14 hazards are rated Relatively High or Very High, led by cold wave. Its storm record holds 566 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), Blaine County, by FEMA's rating, then score
HazardRisk ratingScoreExpected annual loss
Cold WaveRelatively High90.0$4.2M
Winter WeatherRelatively Moderate81.3$133K
LightningRelatively Moderate80.1$429K
WildfireRelatively Low69.8$102K
Riverine FloodingRelatively Low46.5$3.6M
DroughtRelatively Low35.7$26K
LandslideVery Low44.7$559
HailVery Low28.2$65K
Heat WaveVery Low20.6$38K
EarthquakeVery Low13.4$8K
AvalancheVery Low10.7$5
Strong WindVery Low9.4$40K
Ice StormVery Low8.5$3K
TornadoVery Low6.7$19K

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 storms1910–26th of 561141st of 3,080
Severe thunderstorm wind1080$374K39th of 562767th of 3,080
Hail1020$3.2M50th of 562789th of 3,080
Winter storms860–56th of 562733rd of 3,077
Extreme cold330–33rd of 562142nd of 3,076
Floods240$2.5M38th of 562895th of 3,080
Heavy rain70–43rd of 562165th of 3,080
Tornadoes70$82K32nd of 562844th of 3,080
Wildfires20–43rd of 561239th 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 Blaine County record: every hazard by year and month, the deadliest events and FEMA's declarations.

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