Sanilac County, Michigan: hazard risk

FEMA rates Sanilac County's overall risk Relatively Low (score 70.3 of 100, higher than 70% of rated U.S. counties); 2 of its 15 hazards are rated Relatively High or Very High, led by cold wave, winter weather. Its storm record holds 397 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), Sanilac County, by FEMA's rating, then score
HazardRisk ratingScoreExpected annual loss
Cold WaveRelatively High95.7$10M
Winter WeatherRelatively High89.7$316K
Ice StormRelatively Moderate71.4$186K
Strong WindRelatively Moderate71.2$795K
Riverine FloodingRelatively Low66.2$8.9M
TornadoRelatively Low63.0$1.6M
HailRelatively Low62.3$325K
Heat WaveRelatively Low45.9$240K
LightningRelatively Low30.9$89K
HurricaneVery Low55.4$99K
EarthquakeVery Low33.7$80K
LandslideVery Low33.1$308
Coastal FloodingVery Low26.6$2K
WildfireVery Low12.2$3K
DroughtNo Rating0.0$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

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.
Severe thunderstorm wind1442$1.5M51st of 832282nd of 3,080
Winter storms890$5.0M79th of 831640th of 3,077
Hail640$309K65th of 832498th of 3,080
High wind and dust storms310$15M24th of 831326th of 3,080
Tornadoes210$9.7M35th of 831944th of 3,080
Extreme cold161$1.7M34th of 831304th of 3,076
Heat120–17th of 831294th of 3,076
Floods110$5.1M56th of 832671st of 3,080
Lightning50$228K29th of 831378th of 3,080
Drought20–24th of 832390th of 3,063

Source: NOAA NCEI Storm Events Database, 1950 to 2026-06-30; damage in 2025 dollars. Search the record at NCEI.

The full Sanilac County record: every hazard by year and month, the deadliest events and FEMA's declarations.

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