Monroe County, Illinois tornadoes

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41confirmed tornadoes since NOAA records began in 1950 (the first here in 1957). Most recent: April 20, 2025, EF1. 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.

Recent warnings

Recent warnings in Monroe County

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The record

At a glance

Total411950 to 2025
Per year0.5average since 1950
Peak monthApril16 of 41
StrongestF3Apr 18, 1975
Deaths0whole paths, see note
Injuries2whole paths, see note

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

Seasons

When tornadoes hit here

By month

160 Jan: 0Feb: 0Mar: 6Apr: 16May: 13Jun: 4Jul: 0Aug: 1Sep: 1Oct: 0Nov: 0Dec: 0JanFebMarAprMayJunJulAugSepOctNovDec

April is the peak month, with 16 of 41 tornadoes.

By time of day

70 12 AM: 1: 0: 03 AM: 0: 1: 06 AM: 0: 0: 09 AM: 0: 0: 612 PM: 0: 0: 13 PM: 3: 6: 76 PM: 5: 7: 19 PM: 3: 0: 012 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

60 1950: 0: 0: 0: 0: 0: 0: 0: 2: 0: 11960: 1: 0: 0: 0: 1: 2: 0: 0: 1: 01970: 0: 0: 0: 1: 0: 1: 0: 0: 0: 01980: 0: 0: 0: 0: 1: 0: 0: 0: 0: 01990: 0: 0: 0: 0: 1: 6: 1: 0: 2: 02000: 0: 0: 0: 3: 0: 0: 2: 0: 1: 02010: 2: 1: 0: 0: 2: 0: 0: 0: 0: 12020: 0: 0: 0: 4: 1: 319501960197019801990200020102020

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
15
EF1
16
EF2
7
EF3
2
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

Strongest

F3, April 18, 1975

2 mile path Longest path

22.3 miles, F2

March 29, 1960, whole path Widest

350 yards, EF2

April 30, 2010
Every tornado

All 41 tornadoes, newest first

DateRatingPath lengthWidthDeathsInjuries
Apr 20, 2025EF10.35 mi100 yd00
Apr 20, 2025EF17.33 mi100 yd00
Mar 14, 2025EF114.67 mi275 yd00
May 26, 2024EF18.81 mi172 yd00
Aug 13, 2023EF00.38 mi10 yd00
Apr 15, 2023EFU0.34 mi25 yd00
Apr 15, 2023EF04.97 mi100 yd00
Apr 15, 2023EF119.57 mi100 yd00
May 21, 2019EF00.34 mi50 yd00
Jun 7, 2014EF00.3 mi30 yd00
Jun 7, 2014EF00.34 mi40 yd00
Apr 22, 2011EF23.52 mi90 yd01
Apr 30, 2010EF00.11 mi50 yd00
Apr 30, 2010EF27.24 mi350 yd00
Mar 31, 2008EF01.78 mi30 yd00
Mar 11, 2006F12.4 mi100 yd00
Mar 11, 2006F35.1 mi200 yd00
Jun 10, 2003F01 mi50 yd00
Jun 10, 2003F03 mi50 yd00
May 6, 2003F14 mi60 yd00
Apr 15, 1998F016 mi50 yd00
Apr 15, 1998F00.1 mi50 yd00
Apr 19, 1996F01 mi50 yd00
May 18, 1995F14.8 mi150 yd00
May 18, 1995F24.2 mi170 yd00
This year

2026 preliminary reports not yet confirmed

Report dateLocationRating
Jul 11, 20262 N ValmeyerNot yet rated
Mar 15, 2026AmesNot 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 13, 2026.