Wisconsin

Storm History: Iowa County, Wisconsin

650 episodes, 812 events since 1954

Every storm the National Weather Service has filed in Iowa 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
812
Deaths
11
Injuries
211
Damage
$46 million
Episodes
650

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 Iowa 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
Tornado1559206$14 million
Winter Weather13022
Hail9400$23 million
Dense Fog7300
Winter Storm6300$34,000
Thunderstorm Wind6100$1.4 million
Flash Flood4100$2.7 million
Heat3200$210,000
Cold/Wind Chill2701
Strong Wind2600$101,000
Flood2300$3.6 million
Drought1800$150,000
Extreme Cold/Wind Chill1400$3,000
High Wind1302$617,000
Excessive Heat1300
Heavy Snow900
Blizzard800
Heavy Rain500
Ice Storm200
Lightning100$110,000
Funnel Cloud100
Frost/Freeze100
Lake-Effect Snow100
Debris Flow100$1,000

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 Iowa County, with its track

Every episode, newest first

Earlier years, state by state:

More

Tornadoes in Iowa CountyEvery warning in Iowa 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.