Waukesha County tornado history

39 tornadoes touched Waukesha County, Wisconsin between 1950 and 2025 — about 0.5 a year. The strongest was rated F4 (Apr 27, 1984). Tornadoes here killed 1 and injured 43 people.

39tornadoes since 1950

F4strongest rating

1killed · 43 injured

69.5 milongest path · 1977

(E)F0(E)F1(E)F2(E)F3(E)F4(E)F5· dots = start point only

By rating

(E)F08

(E)F121

(E)F27

(E)F32

(E)F41

(E)F50

By month

JFMAMJJASOND

Peak month: July.

By decade

’50’60’70’80’90’00’10’20

Strongest tornadoes

Date	Rating	Path	Width	Injured	Killed
Apr 27, 1984	F4	6.5 mi	10 yd	14	1
Jun 5, 1977	F3	69.5 mi	400 yd	8	0
Jun 5, 1980	F3	10.7 mi	100 yd	0	0
Jun 15, 1981	F2	28.7 mi	50 yd	3	0
Jun 29, 1969	F2	13.1 mi	100 yd	0	0
Apr 2, 1977	F2	9.3 mi	100 yd	2	0
Jun 21, 2010	EF2	5.2 mi	880 yd	15	0
May 18, 1967	F2	4.7 mi	100 yd	0	0
Oct 8, 1959	F2	1 mi	10 yd	0	0
Jul 22, 2010	EF2	1 mi	100 yd	0	0
Jul 14, 1972	F1	34 mi	100 yd	0	0
Aug 17, 1985	F1	15 mi	50 yd	0	0

Most recent tornadoes

Date	Rating	Path	Width	Injured
Jul 28, 2023	EF1	1.3 mi	90 yd	0
Mar 31, 2023	EF1	2.8 mi	50 yd	0
Oct 12, 2022	EF0	0.6 mi	50 yd	0
Jul 29, 2021	EF1	4.7 mi	150 yd	0
Jul 29, 2021	EF1	1 mi	75 yd	0
Jul 29, 2021	EF0	2.4 mi	50 yd	0
Jul 29, 2021	EF1	0.9 mi	95 yd	0
Oct 1, 2019	EF1	12.8 mi	100 yd	0
Aug 18, 2015	EF1	2.5 mi	50 yd	0
Aug 18, 2015	EF0	0.6 mi	25 yd	0
Jul 22, 2010	EF2	1 mi	100 yd	0
Jun 21, 2010	EF2	5.2 mi	880 yd	15

Deadliest: Apr 27, 1984, F4, 1 killed.

Nearby counties

Milwaukee County, WI21 Jefferson County, WI50 Washington County, WI20 Walworth County, WI41 Racine County, WI24 Dodge County, WI68 Kenosha County, WI12 Ozaukee County, WI5

Questions

How many tornadoes has Waukesha County, Wisconsin had?

39 tornadoes touched Waukesha County, Wisconsin between 1950 and 2025 in the NOAA Storm Prediction Center database — about 0.5 per year.

What was the strongest tornado in Waukesha County?

The strongest rating recorded was F4 on Apr 27, 1984, with a 6.5-mile path and 1 deaths.

When is tornado season in Waukesha County?

Most of its tornadoes happened in July (12 of 39). Tornadoes can occur in any month, so keep alerts on year-round.

Right now: live tornado warnings map · alerts for your location. Dates link to that day’s full storm reports where available (2004 onward).