Wisconsin

Storm History: Trempealeau County, Wisconsin

440 episodes, 749 events since 1959

Every storm the National Weather Service has filed in Trempealeau County, Wisconsin: floods, hail, damaging wind, tornadoes, winter storms, heat and the rest, with the most serious on record. Events filed by forecast zone count for every county the zone covers.

The record

Events
749
Deaths
11
Injuries
34
Damage
$46 million
Episodes
440

Deaths and injuries are direct and indirect together, as the offices filed them. Damage is property and crops in the dollars of the year, not adjusted for inflation, and only where an office estimated it.

Open the live radar over Trempealeau County

Every year

From 1996 the record holds 48 kinds of event with each office’s narrative; before that, tornadoes, hail and thunderstorm wind only, and before 1955 tornadoes alone.

By kind of event

Counted under the kind that heads each episode.

Kind of eventEventsDeathsInjuriesDamage
Hail20732$8.6 million
Tornado15217$8.8 million
Flash Flood8701$20 million
Flood8401$5.6 million
Winter Storm6403$122,000
Thunderstorm Wind5004$818,000
Heavy Snow1801
Drought1400
Extreme Cold/Wind Chill1100
Winter Weather1118$65,000
Heat810
Ice Storm702$8,000
Blizzard600$310,000
Cold/Wind Chill600
High Wind600$112,000
Excessive Heat600
Dense Fog322$15,000
Lightning311$1.2 million
Wildfire222
Frost/Freeze200$1,000
Strong Wind100$200
Funnel Cloud100

The deadliest

The costliest

Damage within this county, in the dollars of its year.

The largest hail

The largest stone in each episode, which may have fallen in a neighboring county of the same episode.

The strongest tornadoes

Every tornado in Trempealeau County, with its track

Every episode, newest first

Earlier years, state by state:

More

Tornadoes in Trempealeau CountyEvery warning in Trempealeau County since 1986Every county in Wisconsin

Sources

NOAA National Centers for Environmental Information, Storm Events Database, compiled from the National Weather Service’s monthly Storm Data. Complete through 2026-06; NCEI adds each month about 75 days after it ends and revises past years a few times a year. Rebuilt 2026-09-24.