Storm History: Waukesha County, Wisconsin
Every storm the National Weather Service has filed in Waukesha 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
- 1,260
- Deaths
- 9
- Injuries
- 51
- Damage
- $289 million
- Episodes
- 845
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.
Every year
By kind of event
Counted under the kind that heads each episode.
| Kind of event | Events | Deaths | Injuries | Damage |
|---|---|---|---|---|
| Tornado | 242 | 3 | 34 | $47 million |
| Hail | 218 | 0 | 3 | $25 million |
| Winter Weather | 145 | 2 | 0 | |
| Thunderstorm Wind | 121 | 0 | 1 | $8.0 million |
| Flash Flood | 120 | 2 | 6 | $199 million |
| Flood | 72 | 0 | 1 | $7.6 million |
| Dense Fog | 72 | 1 | 0 | |
| Winter Storm | 70 | 0 | 0 | $97,000 |
| Strong Wind | 43 | 0 | 0 | $162,000 |
| Heat | 31 | 1 | 0 | |
| Cold/Wind Chill | 25 | 0 | 0 | |
| High Wind | 19 | 0 | 4 | $1.5 million |
| Drought | 18 | 0 | 0 | $250,000 |
| Lightning | 16 | 0 | 2 | $533,000 |
| Excessive Heat | 11 | 0 | 0 | |
| Extreme Cold/Wind Chill | 10 | 0 | 0 | $3,000 |
| Blizzard | 9 | 0 | 0 | $44,000 |
| Heavy Snow | 7 | 0 | 0 | |
| Ice Storm | 4 | 0 | 0 | $20,000 |
| Heavy Rain | 4 | 0 | 0 | $34,000 |
| Funnel Cloud | 1 | 0 | 0 | |
| Dust Devil | 1 | 0 | 0 | $200 |
| Lake-Effect Snow | 1 | 0 | 0 |
The deadliest
The costliest
Damage within this county, in the dollars of its year.
- Flash Flood, August 9, 2025
- Flash Flood, June 8, 2008
- Hail, April 13, 2006
- Tornado, June 21, 2010
- Flash Flood, August 6, 1998
- Tornado, April 14, 2026
- Thunderstorm Wind, May 31, 1998
- Flash Flood, June 21, 1997
- Flood, June 1, 2004
- Flash Flood, July 27, 2006
- Flash Flood, July 22, 2010
- Flash Flood, September 12, 2019
- Tornado, April 2, 1977
- Tornado, June 5, 1977
- Tornado, April 27, 1984
- Tornado, July 6, 1987
- Tornado, August 16, 1987
- Tornado, August 21, 2002
- Hail, October 29, 1996
- Flash Flood, November 5, 2005
The largest hail
The largest stone in each episode, which may have fallen in a neighboring county of the same episode.
- Hail, May 11, 2011
- Hail, April 13, 2006
- Hail, August 2, 2015
- Flood, May 14, 2001
- Hail, April 7, 2020
- Flash Flood, August 3, 2004
- Hail, August 3, 1997
- Hail, July 27, 1989
- Hail, May 2, 2018
- Flash Flood, April 18, 2025
- Hail, July 9, 1984
- Hail, June 10, 1968
- Flash Flood, July 23, 2022
- Hail, May 15, 2017
- Flash Flood, May 12, 2014
The strongest tornadoes
- Tornado, April 27, 1984
- Tornado, June 5, 1977
- Tornado, June 5, 1980
- Tornado, May 8, 1988
- Tornado, June 17, 1992
- Tornado, June 23, 2004
- Tornado, April 7, 1954
- Tornado, July 31, 1955
- Tornado, October 8, 1959
- Tornado, April 11, 1965
- Tornado, July 10, 1966
- Tornado, May 18, 1967
- Tornado, June 29, 1969
- Tornado, April 2, 1977
- Tornado, August 4, 1980
Every episode, newest first
- Excessive Heat, June 30, 2026
- Excessive Heat, June 29, 2026
- Tornado, June 10, 2026
- Tornado, April 17, 2026
- Tornado, April 15, 2026
- Flood, April 14, 2026
- Tornado, April 14, 2026
- Tornado, April 13, 2026
- Winter Weather, March 15, 2026
- Blizzard, March 15, 2026
- High Wind, March 12, 2026
- Winter Weather, February 28, 2026
- Extreme Cold/Wind Chill, January 23, 2026
- Winter Weather, January 20, 2026
- Winter Weather, January 18, 2026
- Winter Weather, January 16, 2026
- Winter Weather, January 14, 2026
- Winter Weather, January 10, 2026
- Winter Weather, December 28, 2025
- Winter Weather, December 13, 2025
- Winter Storm, December 9, 2025
- Winter Weather, December 6, 2025
- Winter Storm, November 28, 2025
- Hail, September 22, 2025
- Thunderstorm Wind, August 12, 2025
- Flash Flood, August 9, 2025
- Excessive Heat, June 21, 2025
- Thunderstorm Wind, May 16, 2025
- Tornado, May 15, 2025
- Flash Flood, April 18, 2025
- Winter Weather, March 16, 2025
- Thunderstorm Wind, March 14, 2025
- Extreme Cold/Wind Chill, February 17, 2025
- Winter Weather, February 14, 2025
- Winter Storm, February 12, 2025
- Winter Weather, February 5, 2025
- Extreme Cold/Wind Chill, January 20, 2025
- Winter Weather, January 5, 2025
- Winter Storm, December 19, 2024
- Winter Weather, November 21, 2024
- Thunderstorm Wind, August 27, 2024
- Excessive Heat, August 26, 2024
- Thunderstorm Wind, July 7, 2024
- Flood, June 25, 2024
- Hail, June 17, 2024
- Flash Flood, June 3, 2024
- Tornado, May 21, 2024
- Hail, May 13, 2024
- Tornado, May 7, 2024
- Winter Storm, April 2, 2024
- Winter Storm, March 21, 2024
- Hail, February 27, 2024
- Winter Weather, February 15, 2024
- Tornado, February 8, 2024
- Winter Weather, January 22, 2024
- Winter Weather, January 22, 2024
- Extreme Cold/Wind Chill, January 12, 2024
- Winter Storm, January 12, 2024
- Winter Storm, January 8, 2024
- Winter Weather, December 30, 2023
- Winter Weather, October 31, 2023
- Hail, August 24, 2023
- Excessive Heat, August 23, 2023
- Flash Flood, August 14, 2023
- Tornado, July 28, 2023
- Hail, July 22, 2023
- Thunderstorm Wind, June 24, 2023
- Hail, May 31, 2023
- Flash Flood, April 19, 2023
- Tornado, March 31, 2023
- Winter Storm, March 25, 2023
- Winter Storm, March 9, 2023
- Ice Storm, February 22, 2023
- Winter Storm, February 16, 2023
- Winter Storm, January 28, 2023
- Winter Weather, January 25, 2023
- Extreme Cold/Wind Chill, December 22, 2022
- Winter Weather, December 21, 2022
- Winter Weather, December 9, 2022
- High Wind, November 5, 2022
- Thunderstorm Wind, November 5, 2022
- Tornado, October 12, 2022
- Thunderstorm Wind, September 25, 2022
- Hail, September 20, 2022
- Flood, September 11, 2022
- Flash Flood, July 23, 2022
- Flash Flood, July 1, 2022
- Excessive Heat, June 21, 2022
- Flood, June 15, 2022
- Excessive Heat, June 14, 2022
- Flood, June 13, 2022
- Flood, June 10, 2022
- Hail, April 22, 2022
- High Wind, April 14, 2022
- Winter Weather, March 31, 2022
- Winter Weather, March 6, 2022
- Winter Storm, February 24, 2022
- Winter Weather, February 21, 2022
- Winter Weather, February 18, 2022
- Winter Weather, February 6, 2022
- Winter Weather, January 24, 2022
- Winter Weather, January 22, 2022
- Winter Storm, January 1, 2022
- Winter Weather, December 31, 2021
- Winter Weather, December 28, 2021
- High Wind, December 15, 2021
- Hail, September 13, 2021
- Hail, September 12, 2021
- Thunderstorm Wind, August 10, 2021
- Tornado, July 28, 2021
- Strong Wind, May 1, 2021
- Winter Weather, February 13, 2021
- Cold/Wind Chill, February 13, 2021
- Winter Weather, February 11, 2021
- Cold/Wind Chill, February 6, 2021
- Winter Weather, February 4, 2021
- Winter Storm, January 30, 2021
- Winter Storm, January 25, 2021
- Winter Weather, January 1, 2021
- Winter Storm, December 29, 2020
- Winter Storm, December 11, 2020
- Winter Weather, November 24, 2020
- Thunderstorm Wind, November 10, 2020
- Thunderstorm Wind, August 23, 2020
- Thunderstorm Wind, August 9, 2020
- Thunderstorm Wind, July 9, 2020
- Hail, July 7, 2020
- Thunderstorm Wind, June 11, 2020
- Flash Flood, June 10, 2020
- Flood, May 17, 2020
- Strong Wind, April 29, 2020
- Thunderstorm Wind, April 20, 2020
- Hail, April 7, 2020
- Winter Weather, February 17, 2020
- Winter Weather, February 12, 2020
- Winter Storm, February 9, 2020
- Winter Weather, January 31, 2020
- Winter Weather, January 24, 2020
- Winter Weather, January 17, 2020
- Winter Weather, January 10, 2020
- Winter Weather, December 30, 2019
- Winter Weather, December 14, 2019
- Strong Wind, November 27, 2019
- Winter Weather, November 10, 2019
- Winter Weather, November 6, 2019
- Winter Weather, October 30, 2019
- Tornado, October 1, 2019
- Flash Flood, September 12, 2019
- Thunderstorm Wind, August 18, 2019
- Excessive Heat, July 19, 2019
- Hail, July 2, 2019
- Thunderstorm Wind, June 30, 2019
- Thunderstorm Wind, June 27, 2019
- Winter Weather, April 27, 2019
- Winter Storm, April 14, 2019
- Flood, March 13, 2019
- Winter Weather, March 9, 2019
- Winter Weather, February 26, 2019
- High Wind, February 24, 2019
- Winter Weather, February 23, 2019
- Winter Weather, February 17, 2019
- Winter Storm, February 11, 2019
- Winter Weather, February 7, 2019
- Winter Weather, February 5, 2019
- Extreme Cold/Wind Chill, January 29, 2019
- Winter Storm, January 27, 2019
- Winter Storm, January 22, 2019
- Winter Storm, January 18, 2019
- Winter Weather, December 29, 2018
- Winter Weather, December 28, 2018
- Winter Storm, November 25, 2018
- Strong Wind, October 20, 2018
- Flood, September 1, 2018
- Flash Flood, August 26, 2018
- Dense Fog, August 3, 2018
- Heat, July 4, 2018
- Thunderstorm Wind, July 1, 2018
- Excessive Heat, June 29, 2018
- Thunderstorm Wind, June 18, 2018
- Heat, June 16, 2018
- Thunderstorm Wind, May 27, 2018
- Hail, May 2, 2018
- Winter Storm, April 18, 2018
- Winter Storm, April 14, 2018
- Winter Weather, April 3, 2018
- Winter Weather, March 5, 2018
- Flood, February 19, 2018
- Winter Weather, February 11, 2018
- Winter Storm, February 8, 2018
- Winter Weather, February 5, 2018
- Winter Weather, February 3, 2018
- Winter Storm, January 22, 2018
- Winter Storm, January 14, 2018
- Winter Weather, January 10, 2018
- Cold/Wind Chill, January 1, 2018
- Cold/Wind Chill, December 25, 2017
- High Wind, December 4, 2017
- Hail, July 15, 2017
- Flash Flood, July 11, 2017
- Hail, July 7, 2017
- Hail, July 1, 2017
- Tornado, June 28, 2017
- Hail, June 19, 2017
- Hail, May 17, 2017
- Hail, May 15, 2017
- Hail, April 20, 2017
- Hail, March 23, 2017
- Lake-Effect Snow, March 12, 2017
- High Wind, March 8, 2017
- Winter Weather, February 24, 2017
- Winter Weather, January 16, 2017
- Winter Weather, January 11, 2017
- Winter Weather, January 10, 2017
- Winter Weather, January 3, 2017
- Cold/Wind Chill, December 18, 2016
- Winter Storm, December 16, 2016
- Cold/Wind Chill, December 14, 2016
- Winter Storm, December 10, 2016
- Winter Weather, December 4, 2016
- Flash Flood, September 7, 2016
- Flash Flood, July 21, 2016
- Heat, July 21, 2016
- Flash Flood, June 9, 2016
- Thunderstorm Wind, June 5, 2016
- Hail, May 28, 2016
- Hail, April 25, 2016
- Winter Weather, April 8, 2016
- Winter Weather, April 2, 2016
- Winter Storm, March 23, 2016
- High Wind, March 16, 2016
- Hail, March 15, 2016
- Winter Weather, March 1, 2016
- Winter Weather, February 29, 2016
- High Wind, February 19, 2016
- Winter Weather, February 8, 2016
- Winter Storm, December 28, 2015
- Strong Wind, December 23, 2015
- Winter Storm, November 20, 2015
- Hail, November 11, 2015
- Tornado, August 18, 2015
- Hail, August 14, 2015
- Hail, August 2, 2015
- Tornado, July 18, 2015
- Flash Flood, July 13, 2015
- Thunderstorm Wind, June 22, 2015
- Winter Weather, March 3, 2015
- Blizzard, February 1, 2015
- Cold/Wind Chill, January 9, 2015
- Winter Weather, January 8, 2015
- Cold/Wind Chill, January 7, 2015
Earlier years, state by state:
More
Tornadoes in Waukesha CountyEvery warning in Waukesha 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.