Hamilton County, Illinois tornadoes

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13confirmed tornadoes since NOAA records began in 1950 (the first here in 1957). Most recent: March 19, 2020, 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 Hamilton County

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The record

At a glance

Total131950 to 2025
Per year0.2average since 1950
Peak monthMarch3 of 13
StrongestF4Jun 2, 1990
Deaths1whole paths, see note
Injuries28whole paths, see note

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

Seasons

When tornadoes hit here

By month

30 Jan: 1Feb: 1Mar: 3Apr: 2May: 1Jun: 2Jul: 0Aug: 0Sep: 0Oct: 1Nov: 0Dec: 2JanFebMarAprMayJunJulAugSepOctNovDec

March is the peak month, with 3 of 13 tornadoes.

By time of day

30 12 AM: 0: 0: 03 AM: 0: 0: 06 AM: 0: 0: 09 AM: 0: 0: 012 PM: 0: 0: 03 PM: 2: 2: 26 PM: 1: 1: 39 PM: 2: 0: 012 AM3 AM6 AM9 AM12 PM3 PM6 PM9 PM

Most often around 8:00 PM. Times as recorded by NOAA, mostly Central Standard Time.

By year, 1950 to 2025

30 1950: 0: 0: 0: 0: 0: 0: 0: 2: 0: 01960: 1: 0: 0: 0: 1: 0: 0: 0: 0: 01970: 0: 0: 0: 0: 0: 0: 0: 0: 0: 01980: 0: 0: 1: 0: 0: 0: 0: 0: 0: 11990: 3: 0: 0: 0: 0: 0: 1: 0: 0: 02000: 0: 0: 0: 0: 0: 0: 0: 0: 0: 02010: 0: 1: 0: 0: 0: 1: 0: 0: 0: 02020: 1: 0: 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
1
EF1
4
EF2
4
EF3
3
EF4
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, June 2, 1990

1 deaths, 12 injuries Strongest

F4, June 2, 1990

106 mile path Longest path

106 miles, F4

June 2, 1990, whole path Widest

400 yards, F3

April 19, 1996
Every tornado

All 13 tornadoes, newest first

DateRatingPath lengthWidthDeathsInjuries
Mar 19, 2020EF12.9 mi300 yd00
Jun 19, 2015EF00.49 mi50 yd00
Apr 19, 2011EF13.36 mi150 yd00
Apr 19, 1996F317 mi400 yd00
Oct 3, 1990F13 mi50 yd00
Jun 2, 1990F4106 mi300 yd112
May 9, 1990F20.5 mi50 yd00
Jan 7, 1989F227 mi100 yd06
Mar 30, 1982F10.1 mi10 yd00
Mar 25, 1964F211.5 mi50 yd02
Feb 9, 1960F224 mi77 yd01
Dec 18, 1957F319.8 mi10 yd04
Dec 18, 1957F32.5 mi150 yd03
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.