Tornado History Map

Henry County, Illinois tornado history

74 tornadoes recorded in or across Henry County from 1956 to 2025, coloured by rating on the map.

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Years1950 to 2025
Rating (F or EF scale)

Shows tornadoes that started in, or crossed, the chosen state. To see how many have passed near you, search a town or ZIP code, or tap the map.

Key
  • F0 / EF0 Light damage
  • F1 / EF1 Moderate damage
  • F2 / EF2 Considerable damage
  • F3 / EF3 Severe damage
  • F4 / EF4 Devastating damage
  • F5 / EF5 Incredible damage
  • Unknown Not rated (2007 onwards)

How to read the lines. Each line is one tornado, drawn from where it started to where it ended, coloured and sized by its rating. A dot means the record has no end point. Tap a line for its details, or tap anywhere else to see how many tornadoes have passed nearby. Weaker tornadoes appear as you zoom in. Ratings use the Fujita (F) scale before 1 February 2007 and the Enhanced Fujita (EF) scale from then on.

Tornadoes in Henry County

The Storm Prediction Center records 74 tornadoes whose paths touched Henry County, Illinois between 1956 and 2025. None of them is recorded as having killed anyone. The busiest month is April, with 26 tornadoes. The strongest was an F2 on 21 April 1973. The most recent was on 20 April 2025.

  • 74tornadoes
  • 0deaths
  • 9injuries
  • 899per 10,000 sq mi of land

A tornado that crossed several counties counts in each one, so county counts add up to more than the state's.

How strong were the tornadoes in Henry County?

RatingTornadoesShare
F0 / EF02736%
F1 / EF12534%
F2 / EF21824%
F3 / EF300%
F4 / EF400%
F5 / EF500%
Unknown rating45%

Henry County tornadoes over time

Tornadoes by decade
Bar chart of tornadoes by period. The most is 25 in 2020s.1950s21960s91970s121980s21990s82000s72010s92020s25

The 2020s only run to 2025, so that bar is for a shorter period. The record starts in 1950.

Show the numbers
PeriodCount
1950s2
1960s9
1970s12
1980s2
1990s8
2000s7
2010s9
2020s25
Tornadoes by month
Bar chart of tornadoes by period. The most is 26 in Apr.Jan0Feb1Mar6Apr26May20Jun7Jul5Aug4Sep1Oct1Nov2Dec1
Show the numbers
PeriodCount
Jan0
Feb1
Mar6
Apr26
May20
Jun7
Jul5
Aug4
Sep1
Oct1
Nov2
Dec1

Records for Henry County

  • Strongest: Illinois tornado21 April 1973, F2, 2 injuries, 30.2 miles long
  • Longest path: Illinois tornado21 July 1961, F1, 147.4 miles long
  • Most recent: Illinois tornado20 April 2025, EF1, 7.2 miles long

Many of these tornadoes killed or injured people. The numbers are the official record's, and they may be revised.

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