Wisconsin

Storm History: Grant County, Wisconsin

509 episodes, 1,007 events since 1954

Every storm the National Weather Service has filed in Grant 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
1,007
Deaths
3
Injuries
17
Damage
$104 million
Episodes
509

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 Grant 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
Hail29200$23 million
Tornado195012$31 million
Flash Flood13900$41 million
Thunderstorm Wind12810$1.9 million
Flood8100$5.5 million
Winter Storm5900
Drought2500
Heavy Snow1900$10,000
High Wind1001$303,000
Extreme Cold/Wind Chill1001
Winter Weather902$13,000
Blizzard800
Heat700
Excessive Heat600$25,000
Cold/Wind Chill500
Ice Storm400
Lightning311$50,000
Dense Fog210$20,000
Funnel Cloud200
Strong Wind200$16,000
Heavy Rain100$500

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 Grant County, with its track

Every episode, newest first

Earlier years, state by state:

More

Tornadoes in Grant CountyEvery warning in Grant 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.