Knox County, Texas tornadoes

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31confirmed tornadoes since NOAA records began in 1950 (the first here in 1953). Most recent: June 8, 2025, EFU. 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 Knox County

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The record

At a glance

Total311950 to 2025
Per year0.4average since 1950
Peak monthMay12 of 31
StrongestF4Mar 13, 1953
Deaths17whole paths, see note
Injuries26whole paths, see note

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

Seasons

When tornadoes hit here

By month

120 Jan: 0Feb: 0Mar: 2Apr: 7May: 12Jun: 3Jul: 0Aug: 7Sep: 0Oct: 0Nov: 0Dec: 0JanFebMarAprMayJunJulAugSepOctNovDec

May is the peak month, with 12 of 31 tornadoes.

By time of day

50 12 AM: 0: 0: 03 AM: 0: 0: 06 AM: 0: 0: 09 AM: 0: 0: 112 PM: 1: 3: 33 PM: 2: 5: 56 PM: 3: 1: 39 PM: 1: 1: 212 AM3 AM6 AM9 AM12 PM3 PM6 PM9 PM

Most often around 4:00 PM. Times as recorded by NOAA, mostly Central Standard Time.

By year, 1950 to 2025

20 1950: 0: 0: 0: 2: 1: 2: 2: 0: 1: 01960: 1: 0: 2: 0: 0: 0: 0: 1: 1: 11970: 0: 1: 0: 0: 1: 0: 1: 0: 0: 01980: 1: 0: 0: 0: 0: 0: 0: 0: 0: 11990: 1: 0: 0: 1: 0: 0: 0: 0: 0: 12000: 0: 0: 0: 2: 0: 2: 0: 0: 0: 02010: 0: 0: 0: 0: 0: 1: 0: 0: 0: 02020: 0: 1: 0: 0: 1: 219501960197019801990200020102020

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
12
EF1
7
EF2
8
EF3
2
EF4
1
Unknown
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, March 13, 1953

17 deaths, 25 injuries Strongest

F4, March 13, 1953

13.9 mile path Longest path

31.7 miles, F1

May 19, 1955, whole path Widest

1,000 yards, F3

May 13, 2005
Every tornado

All 31 tornadoes, newest first

DateRatingPath lengthWidthDeathsInjuries
Jun 8, 2025EFU0.5 mi100 yd00
Apr 29, 2025EF211.75 mi1,000 yd00
Apr 27, 2024EF212.3 mi1,000 yd00
Apr 27, 2021EF38.4 mi400 yd00
Apr 22, 2015EF00.2 mi30 yd00
May 13, 2005F316.3 mi1,000 yd00
May 13, 2005F14 mi150 yd00
Apr 23, 2003F00.5 mi50 yd00
Apr 15, 2003F12 mi100 yd00
Aug 24, 1999F00.5 min/a00
Mar 29, 1993F00.1 mi20 yd00
May 14, 1990F17 mi50 yd00
May 13, 1989F10.2 mi10 yd00
May 7, 1980F10.1 mi10 yd00
Jun 23, 1976F20.8 mi440 yd00
Aug 27, 1974F10.1 mi10 yd00
May 4, 1971F22 mi50 yd00
Aug 22, 1969F20.3 mi67 yd00
May 29, 1968F00.5 mi17 yd00
Apr 20, 1967F01 mi100 yd00
Aug 2, 1962F00.1 mi10 yd00
Aug 2, 1962F01 mi20 yd00
May 31, 1960F00.3 mi17 yd00
Aug 20, 1958F21 mi50 yd01
May 27, 1956F013.3 mi17 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.