Winnebago County tornado history

32 tornadoes touched Winnebago County, Wisconsin between 1950 and 2025 — about 0.4 a year. The strongest was rated F4 (Apr 3, 1956). Tornadoes here killed 8 and injured 111 people.

32tornadoes since 1950

F4strongest rating

8killed · 111 injured

30.6 milongest path · 1964

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

By rating

(E)F018

(E)F110

(E)F21

(E)F30

(E)F43

(E)F50

By month

JFMAMJJASOND

Peak month: June.

By decade

’50’60’70’80’90’00’10’20

Strongest tornadoes

Date	Rating	Path	Width	Injured	Killed
Apr 3, 1956	F4	11.5 mi	440 yd	50	7
Apr 27, 1984	F4	27.5 mi	60 yd	19	1
Apr 21, 1974	F4	26 mi	200 yd	35	0
May 8, 1964	F2	30.6 mi	63 yd	5	0
Apr 10, 2011	EF1	14.9 mi	150 yd	0	0
Jun 14, 2017	EF1	8 mi	125 yd	0	0
Jun 6, 1971	F1	3.8 mi	50 yd	0	0
May 24, 1989	F1	1.2 mi	50 yd	0	0
May 4, 2010	EF1	0.7 mi	100 yd	0	0
Jul 19, 2008	EF1	0.5 mi	40 yd	0	0
Jun 13, 1971	F1	0.3 mi	50 yd	0	0
Aug 14, 1987	F1	0.2 mi	100 yd	0	0

Most recent tornadoes

Date	Rating	Path	Width
Jun 20, 2020	EF0	0.2 mi	50 yd
Jun 20, 2020	EF0	1.1 mi	75 yd
Jun 20, 2020	EF0	3.4 mi	75 yd
Jun 14, 2017	EF1	8 mi	125 yd
Aug 18, 2014	EF0	2.1 mi	50 yd
Jul 27, 2014	EF0	—	10 yd
Apr 10, 2011	EF1	14.9 mi	150 yd
May 4, 2010	EF1	0.7 mi	100 yd
May 4, 2010	EF0	3.4 mi	100 yd
Jul 19, 2008	EF1	0.5 mi	40 yd
Aug 18, 2005	F0	4 mi	50 yd
Jun 10, 2005	F0	0.1 mi	20 yd

Deadliest: Apr 3, 1956, F4, 7 killed.

Nearby counties

Calumet County, WI24 Fond du Lac County, WI58 Outagamie County, WI36 Green Lake County, WI40 Waushara County, WI29 Waupaca County, WI25 Marquette County, WI26 Brown County, WI31

Questions

How many tornadoes has Winnebago County, Wisconsin had?

32 tornadoes touched Winnebago County, Wisconsin between 1950 and 2025 in the NOAA Storm Prediction Center database — about 0.4 per year.

What was the strongest tornado in Winnebago County?

The strongest rating recorded was F4 on Apr 3, 1956, with a 11.5-mile path and 7 deaths.

When is tornado season in Winnebago County?

Most of its tornadoes happened in June (14 of 32). 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).