Marion County, Ohio tornadoes

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17 confirmed tornadoes since NOAA records began in 1950 (the first here in 1960). Most recent: August 12, 2023, EF1. 2026 so far: 0 preliminary reports preliminary

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Every tornado path in the county

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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.

At a glance

Total171950 to 2025
Per year0.2average since 1950
Peak monthMay7 of 17
StrongestF2Aug 21, 1960
Deaths0whole paths, see note
Injuries17whole paths, see note

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

When tornadoes hit here

By month

70 Jan: 0Feb: 0Mar: 0Apr: 1May: 7Jun: 0Jul: 3Aug: 5Sep: 0Oct: 0Nov: 1Dec: 0JanFebMarAprMayJunJulAugSepOctNovDec

May is the peak month, with 7 of 17 tornadoes.

By time of day

30 12 AM: 0: 1: 03 AM: 0: 0: 06 AM: 0: 0: 09 AM: 0: 2: 112 PM: 2: 1: 03 PM: 3: 3: 16 PM: 0: 0: 29 PM: 0: 0: 112 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

20 1950: 0: 0: 0: 0: 0: 0: 0: 0: 0: 01960: 1: 0: 0: 1: 0: 0: 0: 0: 0: 21970: 1: 1: 0: 1: 0: 0: 0: 0: 0: 11980: 0: 0: 0: 0: 0: 0: 0: 0: 0: 21990: 0: 1: 0: 0: 0: 0: 0: 1: 1: 02000: 1: 0: 1: 0: 0: 0: 0: 0: 0: 02010: 0: 0: 0: 0: 0: 0: 0: 0: 1: 02020: 0: 0: 0: 1: 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
6
EF1
6
EF2
5

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.

Notable tornadoes

Strongest

F2, August 21, 1960

4.5 mile path Longest path

58.2 miles, F2

May 10, 1973, whole path Widest

880 yards, F2

August 21, 1960

All 17 tornadoes, newest first

DateRatingPath lengthWidthDeathsInjuries
Aug 12, 2023EF10.14 mi75 yd00
Jul 31, 2018EF00.62 mi20 yd00
Nov 10, 2002F00.1 mi25 yd00
May 23, 2000F23 mi200 yd00
Aug 25, 1998F03 mi30 yd00
Jul 26, 1997F00.5 mi30 yd00
Aug 19, 1991F00.1 mi20 yd00
Jul 12, 1989F00.2 mi50 yd00
May 25, 1989F10.8 mi50 yd00
Aug 8, 1979F21.2 mi50 yd00
May 10, 1973F258.2 mi267 yd014
May 6, 1971F27.4 mi150 yd03
May 13, 1970F11 mi200 yd00
May 10, 1969F11 mi160 yd00
May 10, 1969F12 mi150 yd00
Apr 19, 1963F10.1 mi10 yd00
Aug 21, 1960F24.5 mi880 yd00

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 12, 2026.