Tornado History Map

Knox County, Ohio tornado history

14 tornadoes recorded in or across Knox County from 1957 to 2024, 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 Knox County

The Storm Prediction Center records 14 tornadoes whose paths touched Knox County, Ohio between 1957 and 2024. None of them is recorded as having killed anyone. The busiest month is June, with 6 tornadoes. The strongest was an F2 on 20 September 2000. The most recent was on 5 June 2024.

  • 14tornadoes
  • 0deaths
  • 19injuries
  • 266per 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 Knox County?

RatingTornadoesShare
F0 / EF0643%
F1 / EF1214%
F2 / EF2643%
F3 / EF300%
F4 / EF400%
F5 / EF500%
Unknown rating00%

Knox County tornadoes over time

Tornadoes by decade
Bar chart of tornadoes by period. The most is 4 in 1980s.1950s11970s21980s41990s22000s32020s2

The 2020s only run to 2024, so that bar is for a shorter period. The record starts in 1950.

Show the numbers
PeriodCount
1950s1
1970s2
1980s4
1990s2
2000s3
2020s2
Tornadoes by month
Bar chart of tornadoes by period. The most is 6 in Jun.Jan0Feb0Mar1Apr2May0Jun6Jul1Aug1Sep3Oct0Nov0Dec0
Show the numbers
PeriodCount
Jan0
Feb0
Mar1
Apr2
May0
Jun6
Jul1
Aug1
Sep3
Oct0
Nov0
Dec0

Records for Knox County

  • Strongest and Longest path: Ohio tornado20 September 2000, F2, 2 injuries, 21 miles long
  • Most recent: Ohio tornado5 June 2024, EF0, 3.3 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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