Clinton County, Iowa tornadoes

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55confirmed tornadoes since NOAA records began in 1950 (the first here in 1965). Most recent: May 24, 2024, EFU. 2026 so far: 2 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.

The record

At a glance

Total551950 to 2025
Per year0.7average since 1950
Peak monthApril11 of 55
StrongestF4Apr 11, 1965
Deaths2whole paths, see note
Injuries34whole paths, see note

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

Seasons

When tornadoes hit here

By month

110 Jan: 3Feb: 2Mar: 10Apr: 11May: 8Jun: 2Jul: 9Aug: 7Sep: 1Oct: 0Nov: 1Dec: 1JanFebMarAprMayJunJulAugSepOctNovDec

April is the peak month, with 11 of 55 tornadoes.

By time of day

120 12 AM: 1: 1: 03 AM: 0: 2: 06 AM: 1: 1: 09 AM: 1: 0: 212 PM: 2: 2: 33 PM: 6: 12: 66 PM: 6: 3: 39 PM: 0: 3: 012 AM3 AM6 AM9 AM12 PM3 PM6 PM9 PM

Most often around 4:00 PM. Times as recorded by NOAA, mostly Central Standard Time.

By year, 1950 to 2025

50 1950: 0: 0: 0: 0: 0: 0: 0: 0: 0: 01960: 0: 0: 0: 0: 0: 1: 0: 3: 0: 01970: 0: 0: 1: 0: 1: 2: 0: 1: 0: 11980: 0: 1: 0: 0: 1: 1: 0: 1: 2: 01990: 1: 1: 0: 0: 0: 4: 2: 3: 0: 02000: 0: 1: 2: 0: 1: 0: 0: 0: 3: 02010: 1: 0: 0: 0: 0: 2: 4: 5: 2: 12020: 1: 0: 0: 3: 2: 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. This year so far: 2 preliminary reports.

By rating

EF0
26
EF1
14
EF2
11
EF3
2
EF4
1
Unknown
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

F4, April 11, 1965

1 deaths, 3 injuries Strongest

F4, April 11, 1965

91.5 mile path Longest path

91.5 miles, F4

April 11, 1965, whole path Widest

400 yards, F2

July 27, 1995
Every tornado

All 55 tornadoes, newest first

DateRatingPath lengthWidthDeathsInjuries
May 24, 2024EFU0.3 mi10 yd00
May 24, 2024EF115.33 mi50 yd00
Jul 28, 2023EF01.04 mi20 yd00
Mar 31, 2023EF218.02 mi350 yd01
Mar 31, 2023EF219.56 mi200 yd02
May 23, 2020EF01.19 mi20 yd00
Aug 18, 2019EF00.1 mi20 yd00
Aug 28, 2018EF04.08 mi25 yd00
Aug 20, 2018EF00.47 mi15 yd00
Jul 26, 2017EF01.25 mi25 yd00
Mar 6, 2017EF04.36 mi50 yd00
Mar 6, 2017EF234.68 mi200 yd00
Mar 6, 2017EF116.63 mi100 yd00
Feb 28, 2017EF00.04 mi25 yd00
May 31, 2016EF00.03 mi10 yd00
Mar 15, 2016EF13.38 mi300 yd00
Mar 15, 2016EF11.35 mi75 yd03
Mar 15, 2016EF01.17 mi50 yd00
Apr 9, 2015EF112.47 mi75 yd00
Apr 9, 2015EF122.38 mi100 yd00
Jun 5, 2010EF00.43 mi100 yd00
Aug 4, 2008EF07.98 mi250 yd00
Jul 10, 2008EF00.01 mi25 yd00
Jul 10, 2008EF03.43 mi100 yd00
Apr 20, 2004F11.3 mi100 yd00
This year

2026 preliminary reports not yet confirmed

Report dateLocationRating
Aug 11, 2026DewittNot yet rated
Apr 2, 20262 WSW WeltonNot yet rated

Preliminary reports from the Storm Prediction Center. One tornado can be reported more than once, and NOAA confirms the final record months later.

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 12, 2026.