Trempealeau County, Wisconsin: hazard risk
FEMA rates Trempealeau County's overall risk Relatively Low (score 58.7 of 100, higher than 58% of rated U.S. counties). Its storm record holds 749 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).
| Hazard | Risk rating | Score | Expected annual loss |
|---|---|---|---|
| Landslide | Relatively Moderate | 90.4 | $58K |
| Hail | Relatively Moderate | 82.8 | $1.0M |
| Cold Wave | Relatively Moderate | 79.1 | $3.4M |
| Lightning | Relatively Moderate | 76.3 | $621K |
| Strong Wind | Relatively Moderate | 64.5 | $816K |
| Riverine Flooding | Relatively Low | 67.5 | $12M |
| Heat Wave | Relatively Low | 60.6 | $587K |
| Tornado | Relatively Low | 59.8 | $1.7M |
| Ice Storm | Relatively Low | 46.1 | $71K |
| Winter Weather | Relatively Low | 42.5 | $49K |
| Drought | Relatively Low | 38.0 | $55K |
| Wildfire | Very Low | 13.2 | $4K |
| Earthquake | Very Low | 5.5 | $5K |
| Hurricane | No Rating | 0.0 | $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
| Hazard | Records | Deaths | Damage | Rank in state | Rank in U.S. |
|---|---|---|---|---|---|
| Hail | 207 | 0 | $11M | 16th of 72 | 1017th of 3,080 |
| Severe thunderstorm wind | 201 | 0 | $9.9M | 30th of 72 | 1791st of 3,080 |
| Winter storms | 106 | 1 | $582K | 40th of 72 | 1049th of 3,077 |
| Floods | 103 | 0 | $25M | 7th of 72 | 565th of 3,080 |
| Heavy rain | 33 | 4 | $54K | 15th of 72 | 529th of 3,080 |
| Tornadoes | 28 | 0 | $25M | 27th of 72 | 1341st of 3,080 |
| Extreme cold | 20 | 0 | $1K | 36th of 72 | 894th of 3,076 |
| Drought | 14 | 0 | – | 53rd of 72 | 1677th of 3,063 |
| Heat | 14 | 1 | – | 28th of 72 | 1026th of 3,076 |
| High wind and dust storms | 7 | 0 | $180K | 48th of 72 | 2367th of 3,080 |
| Lightning | 6 | 1 | $2.1M | 29th of 72 | 847th of 3,080 |
| Wildfires | 2 | 2 | – | 6th of 72 | 746th 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 Trempealeau County record: every hazard by year and month, the deadliest events and FEMA's declarations.