Iroquois County, Illinois tornadoes

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58confirmed tornadoes since NOAA records began in 1950 (the first here in 1954). Most recent: December 28, 2025, EFU. 2026 so far: 4 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 Iroquois County

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The record

At a glance

Total581950 to 2025
Per year0.8average since 1950
Peak monthJune14 of 58
StrongestF3Mar 6, 1956
Deaths0whole paths, see note
Injuries18whole paths, see note

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

Seasons

When tornadoes hit here

By month

140 Jan: 0Feb: 1Mar: 6Apr: 10May: 12Jun: 14Jul: 3Aug: 2Sep: 1Oct: 2Nov: 2Dec: 5JanFebMarAprMayJunJulAugSepOctNovDec

June is the peak month, with 14 of 58 tornadoes.

By time of day

130 12 AM: 1: 0: 03 AM: 0: 0: 06 AM: 0: 0: 09 AM: 0: 0: 012 PM: 4: 2: 43 PM: 13: 6: 116 PM: 6: 4: 29 PM: 3: 2: 012 AM3 AM6 AM9 AM12 PM3 PM6 PM9 PM

Most often around 3:00 PM. Times as recorded by NOAA, mostly Central Standard Time.

By year, 1950 to 2025

70 1950: 0: 0: 0: 0: 1: 0: 2: 0: 0: 11960: 0: 2: 0: 0: 0: 2: 0: 0: 1: 01970: 0: 0: 1: 2: 2: 1: 2: 0: 0: 11980: 1: 0: 1: 0: 0: 0: 0: 1: 0: 01990: 2: 1: 2: 0: 1: 2: 0: 0: 0: 12000: 1: 1: 0: 0: 1: 0: 4: 0: 0: 12010: 1: 0: 1: 2: 0: 0: 2: 0: 0: 22020: 1: 2: 0: 2: 0: 719501960197019801990200020102020

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: 4 preliminary reports.

By rating

EF0
20
EF1
20
EF2
9
EF3
3
Unknown
6

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, March 6, 1956

9.4 mile path Longest path

51.5 miles, F1

March 4, 1961, whole path Widest

880 yards, EF3

November 17, 2013
Every tornado

All 58 tornadoes, newest first

DateRatingPath lengthWidthDeathsInjuries
Dec 28, 2025EFU4.9 mi25 yd00
Dec 28, 2025EF03.4 mi75 yd00
Dec 28, 2025EF19.5 mi150 yd00
Dec 28, 2025EF02.6 mi100 yd00
May 14, 2025EFU0.15 mi25 yd00
Apr 2, 2025EF02.2 mi300 yd00
Apr 2, 2025EF12.3 mi400 yd00
Mar 31, 2023EF14.84 mi300 yd00
Mar 31, 2023EF116.53 mi300 yd00
Oct 3, 2021EFU0.1 mi30 yd00
Jun 25, 2021EF11.5 mi250 yd00
Jun 9, 2020EFU4.36 mi75 yd00
Jul 21, 2019EFU0.4 mi25 yd00
Jun 30, 2019EFU0.15 mi25 yd00
Jun 22, 2016EF13.1 mi440 yd00
Jun 22, 2016EF11.7 mi50 yd00
Nov 17, 2013EF04.52 mi75 yd00
Nov 17, 2013EF329.83 mi880 yd06
May 6, 2012EF11.3 mi200 yd00
Jun 21, 2010EF00.25 mi20 yd00
Aug 19, 2009EF12.75 mi50 yd00
Apr 16, 2006F00.5 mi25 yd00
Apr 16, 2006F00.5 mi25 yd00
Apr 16, 2006F00.5 mi25 yd00
Feb 16, 2006F10.1 mi25 yd00
This year

2026 preliminary reports not yet confirmed

Report dateLocationRating
Jun 11, 20263 ENE WellingtonNot yet rated
Jun 11, 20261 SSW WatsekaNot yet rated
Apr 22, 20265 NE DonovanNot yet rated
Apr 17, 20264 ESE WoodlandNot 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.