Clarion County, Pennsylvania tornadoes

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16confirmed tornadoes since NOAA records began in 1950 (the first here in 1954). Most recent: June 9, 2025, EF0. 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 Clarion County

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The record

At a glance

Total161950 to 2025
Per year0.2average since 1950
Peak monthMay5 of 16
StrongestF2Jun 1, 1954
Deaths1whole paths, see note
Injuries25whole paths, see note

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

Seasons

When tornadoes hit here

By month

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

May is the peak month, with 5 of 16 tornadoes.

By time of day

40 12 AM: 0: 0: 03 AM: 0: 0: 06 AM: 0: 0: 19 AM: 0: 0: 012 PM: 1: 4: 03 PM: 4: 1: 36 PM: 2: 0: 09 PM: 0: 0: 012 AM3 AM6 AM9 AM12 PM3 PM6 PM9 PM

Most often around 1:00 PM. Times as recorded by NOAA, mostly Central Standard Time.

By year, 1950 to 2025

70 1950: 0: 0: 0: 0: 1: 0: 0: 0: 0: 01960: 0: 0: 0: 0: 0: 0: 0: 0: 0: 01970: 0: 0: 0: 1: 0: 0: 0: 0: 1: 01980: 0: 0: 0: 0: 0: 1: 0: 0: 0: 01990: 0: 0: 0: 1: 0: 0: 1: 0: 0: 02000: 0: 0: 1: 0: 0: 0: 0: 0: 0: 02010: 0: 0: 0: 0: 1: 0: 0: 7: 0: 02020: 0: 0: 0: 0: 0: 119501960197019801990200020102020

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
10
EF1
4
EF2
2

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

F1, July 23, 1978

1 deaths, 24 injuries Strongest

F2, June 1, 1954

0.1 mile path Longest path

10 miles, F2

July 19, 1996, whole path Widest

500 yards, F1

July 26, 1993
Every tornado

All 16 tornadoes, newest first

DateRatingPath lengthWidthDeathsInjuries
Jun 9, 2025EF00.23 mi25 yd00
Jul 11, 2017EF01 mi250 yd00
Jun 19, 2017EF00.75 mi60 yd00
Jun 19, 2017EF00.75 mi60 yd00
May 1, 2017EF00.75 mi75 yd00
May 1, 2017EF12.23 mi100 yd00
May 1, 2017EF00.54 mi100 yd00
May 1, 2017EF00.88 mi75 yd00
Jun 18, 2014EF04.57 mi150 yd00
Jul 26, 2002F02 mi150 yd00
Jul 19, 1996F210 mi100 yd00
Jul 26, 1993F11 mi500 yd00
May 31, 1985F05 mi300 yd00
Jul 23, 1978F10.1 mi10 yd124
Oct 4, 1973F11 mi60 yd01
Jun 1, 1954F20.1 mi10 yd00
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.