Heavy Rain in Wisconsin
Every heavy rain event the National Weather Service has filed in Wisconsin, year by year, with the most significant episodes. Rainfall totals unusual for the place and season that did not produce a flood.
The most significant on the map
The most significant heavy rain episodes in Wisconsin.
- Tornadoes
- Tropical storms and surge
- Floods
- Wind
- Hail
- Winter weather
- Heat and drought
- Cold
- Fire, smoke and dust
- Marine and coastal
- Other
The record
- Events
- 570
- Deaths
- 7
- Injuries
- 7
- Damage
- $2.1 million
Every year
The most significant
Ranked by deaths, injuries, damage and size together.
- Flash Flooding and Flooding in Wisconsin, September 21 to 29, 2016One person was killed near Victory (Vernon County) when a house was swept down a hillside by a mudslide during the early morning hours of the 22nd.
- Hail and Heavy Rain in Wisconsin, August 18, 2014Three people were killed in a Trempealeau County car crashed that occurred during the morning of August 18th. The crash happened during a thunderstorm that was producing heavy rain at the time.
- Tornado and Flash Flooding in Wisconsin, August 7 to 11, 2021Several rounds of storms moved across western Wisconsin during the afternoon of August 7th. One of these storms produced an EF3 tornado that started in Boscobel (Grant County) and traveled east/southeast before dissipating south of Blue River (Grant County).
- Tornadoes and Flash Flooding in Wisconsin, June 1, 2000One would be hard pressed to find another day like June 1, 2000 in terms of depth and range of severe, convective weather events across south-central and southeast Wisconsin.
- Tornado and Flash Flood in Wisconsin, July 18 to 24, 2019Several rounds of thunderstorms moved across western Wisconsin during the late evening of July 18th into the early morning hours of July 19th. As the initial round of storms moved through, a brief tornado touched down northeast of Westby (Vernon County).
- Tornado and Flash Flooding in Wisconsin, August 27 to 31, 2018A line of severe thunderstorms moved across western Wisconsin during the evening of August 27th. A brief tornado touched down and had an intermittent damage path between Tomah and Wyeville (Monroe County). The damage was limited to trees and power poles.
- Tornadoes and Hail in Wisconsin, July 14, 2010The morning of Wednesday July 14th had a complex of severe thunderstorms moving across eastern North Dakota, into portions of west-central and central Minnesota.
- Damaging Winds and Lightning Strike in Wisconsin, June 30, 2014A large scale bow echo raced east to northeast across southern WI, causing straight line wind damage in many areas. We Energies reported a maximum power outage of 110000 homes which has not happened since 2005.
- Flash Flooding and Hail in Wisconsin, June 25 to 26, 2006Very slow moving clusters of thunderstorms developed across south-central Wisconsin during the early afternoon hours of June 25th.
- Tornado and Flash Flooding in Wisconsin, August 23 to 24, 2006A stagnant weather pattern on August 23rd and 24th resulted in waves of heavy rain and severe thunderstorms. A warm front pushed north during the afternoon of August 23rd.
- Tornadoes and Damaging Wind in Wisconsin, June 29, 2014A cluster of supercellular storms caused 3 tornadoes, and downburst wind damage over south central WI during the late evening.
- Flash Flooding and Flooding in Wisconsin, June 7 to 17, 2008A warm front extended west to east across the Upper Mississippi River Valley on June 7, which provided the focus for thunderstorms producing excessive rainfall and other severe weather.
- Flash Flooding and Flooding in Wisconsin, September 22 to 30, 2010A stationary front set up across central Wisconsin on the evening of September 22nd. As an unusually moist air mass flowed over this boundary, heavy rain developed and fell repeatedly across the area during the evening and overnight hours.
- Flash Flooding and Flooding in Wisconsin, July 19 to 27, 2017After a round of severe thunderstorms moved across western Wisconsin, a second round of thunderstorms developed over much of the same area during the late evening of July 19th into the early morning of the 20th.
- Tornadoes and Hail in Wisconsin, July 6, 2003Two rounds of scattered severe convection affected south-central and southeast Wisconsin on Sunday, July 6, 2003. The first round occurred during the morning hours and the second during the late afternoon hours.
- Tornado and Hail in Wisconsin, September 4 to 5, 2012Two rounds of thunderstorms impacted parts of western and central Wisconsin on September 4th and 5th.
- Tornadoes and Flash Flooding in Wisconsin, July 2, 2000Severe weather in the form of a tornado, damaging straight-line downburst winds, large hail, and flash flooding hammered a small piece of south-central and much of southeast Wisconsin during the late afternoon and evening hours.
- Flash Flooding and Flooding in Wisconsin, July 11 to 24, 2017Rounds of thunderstorms with torrential rainfall affected southern WI from late evening on July 11th through the morning of July 12th due to a strong surge of warm, moist, and unstable air over a stationary front.
- Lightning Strikes and Heavy Rain in Wisconsin, June 30, 1997Lightning struck an antenna and traveled into garage, setting fire to two cars, a truck camper, motorcycle and other things in the garage.
- Heavy Rain in Wisconsin, June 1, 2014Heavy rainfall contributed to a large tree falling and landing on a tent at Devils Lake State Park, killing a 10 year old girl.
- Heavy Rain in Wisconsin, July 26, 2020One person was killed in a single vehicle accident as thunderstorms with heavy rain moved across western Wisconsin during the afternoon of July 26th. The accident occurred on State Highway 56 east of Liberty (Vernon County).
- Flash Flooding and Damaging Winds in Wisconsin, July 27, 2006A similar scenario to that of July 9, 2006 occurred again on the afternoon of July 27th. Very slow moving scattered thunderstorms developed across portions of south-central and southeast Wisconsin. A lake breeze fired additional storms across Waukesha County.
- Flash Flooding and Heavy Rain in Wisconsin, August 18 to 19, 2007Significant flash flooding affected parts of south-central and southeast Wisconsin during the overnight hours of August 18th into the pre-dawn hours of August 19th, in a roughly 75-mile wide band from the Iowa-Sauk County border through Dane County to Racine and Kenosha…
- Flash Flooding and Flooding in Wisconsin, August 13 to 19, 2010A line of severe thunderstorms moved out of Minnesota and into western and central Wisconsin during the morning hours of August 13th.
- Flash Flooding and Flood in Wisconsin, June 13 to 14, 2000Flash flooding and scattered severe thunderstorms struck parts of south-central and southeast Wisconsin during the afternoon and evening hours. Several clusters of showers and thunderstorms moved east/northeast at 35 to 40 mph across the area.
More
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.