Grant County, Wisconsin: hazard risk

FEMA rates Grant County's overall risk Relatively Low (score 61.1 of 100, higher than 61% of rated U.S. counties). Its storm record holds 1,007 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), Grant County, by FEMA's rating, then score
HazardRisk ratingScoreExpected annual loss
LandslideRelatively Moderate95.5$140K
HailRelatively Moderate89.7$1.6M
Strong WindRelatively Moderate82.7$1.4M
Cold WaveRelatively Moderate80.9$3.7M
TornadoRelatively Moderate76.4$3.1M
LightningRelatively Moderate75.0$567K
DroughtRelatively Moderate64.7$366K
Heat WaveRelatively Low63.0$628K
Riverine FloodingRelatively Low62.2$9.2M
Ice StormRelatively Low53.4$93K
Winter WeatherRelatively Low50.5$61K
EarthquakeVery Low29.8$70K
WildfireVery Low16.7$6K
HurricaneVery Low15.3$4K

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 wind3431$12M42nd of 721980th of 3,080
Hail2530$28M38th of 721740th of 3,080
Floods1390$63M14th of 721104th of 3,080
Winter storms930$31K70th of 721794th of 3,077
Tornadoes560$50M22nd of 721171st of 3,080
Heavy rain290$71213th of 72507th of 3,080
Drought250–44th of 721581st of 3,063
Extreme cold170–68th of 721420th of 3,076
Heat130$33K43rd of 721386th of 3,076
High wind and dust storms130$537K47th of 722315th of 3,080
Lightning81$82K39th of 721073rd 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 Grant County record: every hazard by year and month, the deadliest events and FEMA's declarations.

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