Deer Lodge County, Montana: hazard risk

FEMA rates Deer Lodge County's overall risk Very Low (score 17.6 of 100, higher than 17% of rated U.S. counties); 1 of its 14 hazards are rated Relatively High or Very High, led by avalanche. Its storm record holds 429 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), Deer Lodge County, by FEMA's rating, then score
HazardRisk ratingScoreExpected annual loss
AvalancheRelatively High93.9$2.4M
Winter WeatherRelatively Moderate77.2$162K
LandslideRelatively Low80.8$15K
WildfireRelatively Low73.6$204K
Cold WaveRelatively Low62.0$1.4M
LightningRelatively Low41.3$151K
EarthquakeVery Low50.0$245K
DroughtVery Low15.3$602
Ice StormVery Low14.2$8K
HailVery Low10.6$30K
Riverine FloodingVery Low10.5$1.2M
Heat WaveVery Low7.4$10K
Strong WindVery Low5.6$33K
TornadoVery Low5.5$21K

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 storms2838$291K3rd of 56326th of 3,077
High wind and dust storms530$1.4M14th of 56593rd of 3,080
Extreme cold290–2nd of 56659th of 3,076
Hail210–37th of 562696th of 3,080
Floods180$965K2nd of 562336th of 3,080
Severe thunderstorm wind110$23K44th of 562798th of 3,080
Heavy rain40$19K7th of 561466th of 3,080
Landslides and avalanches41$7K5th of 56141st of 2,278
Lightning30$1K1st of 561398th of 3,080
Tornadoes10–35th of 562878th 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 Deer Lodge County record: every hazard by year and month, the deadliest events and FEMA's declarations.

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