Calhoun County tornado history

41 tornadoes touched Calhoun County, Iowa between 1950 and 2025 — about 0.5 a year. The strongest was rated F4 (Jun 28, 1979). Tornadoes here killed 4 and injured 26 people.

41tornadoes since 1950

F4strongest rating

4killed · 26 injured

36 milongest path · 1995

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

By rating

(E)F017

(E)F18

(E)F26

(E)F32

(E)F44

(E)F50

unrated4

By month

JFMAMJJASOND

Peak month: May.

By decade

’50’60’70’80’90’00’10’20

Strongest tornadoes

Date	Rating	Path	Width	Injured	Killed
Jun 28, 1979	F4	14.9 mi	33 yd	26	3
Jun 9, 1954	F4	9.9 mi	440 yd	0	1
May 27, 1995	F4	36 mi	400 yd	0	0
May 5, 1965	F4	9.9 mi	200 yd	0	0
Jun 7, 1953	F3	30.7 mi	200 yd	0	0
Jul 14, 2021	EF3	10.8 mi	505 yd	0	0
Aug 5, 1958	F2	27.1 mi	60 yd	0	0
Apr 26, 1984	F2	22 mi	200 yd	0	0
Dec 15, 2021	EF2	18 mi	80 yd	0	0
Jun 19, 1990	F2	16 mi	77 yd	0	0
Jul 28, 1986	F2	4 mi	150 yd	0	0
May 15, 1965	F2	0.5 mi	50 yd	0	0

Most recent tornadoes

Date	Rating	Path	Width
Apr 16, 2024	EF1	5.2 mi	75 yd
Apr 16, 2024	unrated	0.6 mi	30 yd
May 13, 2023	unrated	0.6 mi	30 yd
May 13, 2023	EF0	1.4 mi	50 yd
Dec 15, 2021	unrated	1.3 mi	40 yd
Dec 15, 2021	EF1	19 mi	100 yd
Dec 15, 2021	EF2	18 mi	80 yd
Jul 14, 2021	EF3	10.8 mi	505 yd
May 15, 2021	unrated	0.3 mi	30 yd
May 10, 2015	EF1	23.3 mi	700 yd
May 10, 2015	EF0	1 mi	400 yd
Aug 31, 2014	EF0	1.4 mi	100 yd

Deadliest: Jun 28, 1979, F4, 3 killed.

Nearby counties

Sac County, IA28 Webster County, IA63 Pocahontas County, IA49 Carroll County, IA37 Greene County, IA35 Buena Vista County, IA29 Humboldt County, IA27 Boone County, IA58

Questions

How many tornadoes has Calhoun County, Iowa had?

41 tornadoes touched Calhoun County, Iowa between 1950 and 2025 in the NOAA Storm Prediction Center database — about 0.5 per year.

What was the strongest tornado in Calhoun County?

The strongest rating recorded was F4 on Jun 28, 1979, with a 14.9-mile path and 3 deaths.

When is tornado season in Calhoun County?

Most of its tornadoes happened in May (15 of 41). 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.