St. Croix County, Wisconsin: hazard risk

FEMA rates St. Croix County's overall risk Relatively Low (score 64.1 of 100, higher than 64% of rated U.S. counties); 1 of its 13 hazards are rated Relatively High or Very High, led by strong wind. Its storm record holds 573 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), St. Croix County, by FEMA's rating, then score
HazardRisk ratingScoreExpected annual loss
Strong WindRelatively High93.5$3.9M
HailRelatively Moderate87.9$2.2M
TornadoRelatively Moderate84.8$7.9M
Cold WaveRelatively Moderate76.4$4.4M
LightningRelatively Moderate76.0$943K
Winter WeatherRelatively Moderate65.9$170K
LandslideRelatively Low68.6$8K
Riverine FloodingRelatively Low64.1$16M
Heat WaveRelatively Low48.9$540K
Ice StormRelatively Low34.8$62K
WildfireVery Low45.3$53K
DroughtVery Low13.4$152
EarthquakeVery Low7.1$10K

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.
Hail1820$5.0M22nd of 721303rd of 3,080
Severe thunderstorm wind1711$77M36th of 721872nd of 3,080
Winter storms1062$334K39th of 721016th of 3,077
Tornadoes342$319M19th of 721020th of 3,080
Extreme cold190–37th of 72924th of 3,076
Floods191$10M49th of 722409th of 3,080
Heat100–34th of 721223rd of 3,076
Lightning101$1.6M17th of 72508th of 3,080
Heavy rain60–37th of 721131st of 3,080
High wind and dust storms50$37456th of 722544th 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 St. Croix County record: every hazard by year and month, the deadliest events and FEMA's declarations.

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