St. Clair County, Missouri tornadoes

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25confirmed tornadoes since NOAA records began in 1950 (the first here in 1962). Most recent: May 19, 2025, EF1. 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 St. Clair County

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The record

At a glance

Total251950 to 2025
Per year0.3average since 1950
Peak monthMay11 of 25
StrongestF3Mar 15, 1982
Deaths3whole paths, see note
Injuries20whole paths, see note

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

Seasons

When tornadoes hit here

By month

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

May is the peak month, with 11 of 25 tornadoes.

By time of day

40 12 AM: 0: 0: 03 AM: 0: 0: 06 AM: 0: 0: 09 AM: 1: 0: 212 PM: 2: 3: 23 PM: 2: 0: 46 PM: 0: 3: 19 PM: 2: 1: 212 AM3 AM6 AM9 AM12 PM3 PM6 PM9 PM

Most often around 5:00 PM. Times as recorded by NOAA, mostly Central Standard Time.

By year, 1950 to 2025

40 1950: 0: 0: 0: 0: 0: 0: 0: 0: 0: 01960: 0: 0: 1: 0: 0: 0: 0: 0: 0: 01970: 0: 0: 2: 4: 0: 0: 0: 0: 0: 01980: 0: 0: 2: 0: 0: 0: 0: 0: 0: 01990: 0: 0: 0: 0: 0: 0: 0: 1: 0: 12000: 0: 0: 0: 2: 1: 0: 1: 0: 2: 02010: 0: 1: 0: 2: 0: 1: 0: 0: 1: 02020: 0: 0: 0: 0: 2: 119501960197019801990200020102020

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
11
EF1
9
EF2
3
EF3
2

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

F3, March 15, 1982

2 deaths, 8 injuries Strongest

F3, March 15, 1982

70 mile path Longest path

70 miles, F3

March 15, 1982, whole path Widest

600 yards, F3

March 15, 1982
Every tornado

All 25 tornadoes, newest first

DateRatingPath lengthWidthDeathsInjuries
May 19, 2025EF14.57 mi50 yd00
May 6, 2024EF01 mi100 yd00
Apr 26, 2024EF00.17 mi50 yd00
Jun 26, 2018EF12.48 mi200 yd00
May 24, 2015EF15.03 mi200 yd00
May 20, 2013EF00.48 mi200 yd00
Jan 29, 2013EF18.58 mi400 yd00
May 11, 2011EF02.69 mi50 yd00
Jun 2, 2008EF010.58 mi300 yd01
Jan 7, 2008EF00.07 mi20 yd00
Mar 12, 2006F238 mi300 yd17
May 26, 2004F212 mi200 yd01
May 6, 2003F00.2 mi20 yd00
May 6, 2003F00.2 mi20 yd00
May 4, 1999F33 mi200 yd01
May 25, 1997F00.1 mi10 yd00
Apr 2, 1982F00.3 mi50 yd00
Mar 15, 1982F370 mi600 yd28
Apr 20, 1973F19.8 mi10 yd00
Apr 20, 1973F25.7 mi17 yd00
Apr 20, 1973F113 mi17 yd00
Apr 20, 1973F05.7 mi17 yd00
Jul 27, 1972F13.6 mi50 yd01
Apr 13, 1972F15.4 mi50 yd01
May 26, 1962F10.2 mi17 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.