Chickasaw County, Iowa tornadoes

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30confirmed tornadoes since NOAA records began in 1950 (the first here in 1953). Most recent: December 15, 2021, EF0. 2026 so far: 0 preliminary reports preliminary

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Map

Every tornado path in the county

Tornado paths, 1950 to 2025
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(E)F0(E)F1(E)F2(E)F3(E)F4(E)F5Unrated

Each path is a straight line from where the tornado started to where it ended, which is all most NOAA records hold. Tap a path for its details.

Recent warnings

Recent warnings in Chickasaw County

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The record

At a glance

Total301950 to 2025
Per year0.4average since 1950
Peak monthJuly9 of 30
StrongestF5May 15, 1968
Deaths14whole paths, see note
Injuries473whole paths, see note

Deaths and injuries are NOAA's totals for each tornado's whole path, which can extend beyond Chickasaw County.

Seasons

When tornadoes hit here

By month

90 Jan: 0Feb: 0Mar: 0Apr: 1May: 7Jun: 4Jul: 9Aug: 4Sep: 0Oct: 3Nov: 0Dec: 2JanFebMarAprMayJunJulAugSepOctNovDec

July is the peak month, with 9 of 30 tornadoes.

By time of day

60 12 AM: 0: 0: 03 AM: 1: 0: 06 AM: 0: 0: 09 AM: 0: 0: 012 PM: 2: 1: 23 PM: 4: 4: 46 PM: 2: 6: 29 PM: 2: 0: 012 AM3 AM6 AM9 AM12 PM3 PM6 PM9 PM

Most often around 7:00 PM. Times as recorded by NOAA, mostly Central Standard Time.

By year, 1950 to 2025

30 1950: 0: 0: 0: 1: 0: 0: 1: 1: 0: 01960: 0: 2: 0: 0: 0: 2: 0: 0: 1: 01970: 0: 1: 0: 0: 0: 0: 0: 0: 0: 01980: 0: 1: 0: 1: 1: 0: 0: 0: 0: 11990: 0: 1: 0: 2: 3: 1: 0: 0: 0: 12000: 1: 0: 2: 1: 0: 0: 0: 0: 0: 12010: 0: 0: 0: 0: 1: 0: 0: 0: 0: 12020: 0: 2: 0: 0: 0: 019501960197019801990200020102020

The line is the five-year average. Tornadoes before about 1953 were under-reported, and better radar since the 1990s finds more weak ones.

By rating

EF0
13
EF1
11
EF2
3
EF3
1
EF4
1
EF5
1

Ratings before February 2007 use the original F scale; the numbers line up with today's EF scale. Unknown means NOAA could not assign a rating.

The record

Notable tornadoes

Deadliest

F5, May 15, 1968

13 deaths, 462 injuries Strongest

F5, May 15, 1968

62.1 mile path Longest path

116.1 miles, F3

May 20, 1953, whole path Widest

1,320 yards, F4

July 12, 1971
Every tornado

All 30 tornadoes, newest first

DateRatingPath lengthWidthDeathsInjuries
Dec 15, 2021EF04.96 mi50 yd00
Dec 15, 2021EF13.99 mi180 yd00
May 27, 2019EF04.07 mi25 yd00
Aug 31, 2014EF02.99 mi60 yd00
Aug 19, 2009EF01.08 mi40 yd00
Jul 7, 2003F02.5 mi50 yd00
Jun 21, 2002F00.5 mi30 yd00
May 8, 2002F00.2 mi25 yd00
Jun 13, 2000F00.5 mi50 yd00
Jul 20, 1999F12.1 mi70 yd00
Jul 5, 1995F18 mi40 yd00
Jul 19, 1994F00.2 mi30 yd00
Jul 19, 1994F00.3 mi30 yd00
Jul 7, 1994F29.5 mi100 yd00
Aug 9, 1993F25 mi53 yd02
Jul 8, 1993F00.1 mi20 yd00
Jun 18, 1991F15 mi23 yd00
May 24, 1989F110 mi33 yd00
Oct 16, 1984F11 mi27 yd00
Jun 29, 1983F10.1 mi10 yd00
Aug 28, 1981F00.1 mi10 yd00
Jul 12, 1971F410.9 mi1,320 yd08
May 15, 1968F562.1 mi600 yd13462
May 15, 1965F10.1 mi10 yd00
Apr 11, 1965F149.9 mi300 yd00
Nearby

Nearby counties

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Source: NOAA Storm Prediction Center severe weather database, 1950 to 2025, and SPC preliminary reports for 2026. Page built October 13, 2026.