Grant County, Oklahoma tornadoes

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73 confirmed tornadoes since NOAA records began in 1950 (the first here in 1953). Most recent: June 17, 2025, EFU. 2026 so far: 2 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

Total731950 to 2025
Per year1.0average since 1950
Peak monthMay37 of 73
StrongestF4Mar 16, 1965
Deaths0whole paths, see note
Injuries20whole paths, see note

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

When tornadoes hit here

By month

370 Jan: 0Feb: 0Mar: 6Apr: 15May: 37Jun: 4Jul: 2Aug: 1Sep: 7Oct: 1Nov: 0Dec: 0JanFebMarAprMayJunJulAugSepOctNovDec

May is the peak month, with 37 of 73 tornadoes.

By time of day

140 12 AM: 1: 1: 03 AM: 1: 1: 06 AM: 0: 0: 09 AM: 0: 0: 112 PM: 1: 0: 53 PM: 4: 6: 76 PM: 14: 10: 109 PM: 7: 1: 312 AM3 AM6 AM9 AM12 PM3 PM6 PM9 PM

Most often around 6:00 PM. Times as recorded by NOAA, mostly Central Standard Time.

By year, 1950 to 2025

130 1950: 0: 0: 0: 1: 0: 3: 2: 0: 2: 21960: 0: 0: 0: 0: 3: 3: 3: 0: 0: 01970: 0: 0: 2: 2: 0: 0: 0: 1: 1: 11980: 0: 0: 0: 1: 1: 0: 0: 0: 0: 01990: 2: 3: 0: 0: 0: 0: 2: 3: 13: 12000: 1: 0: 3: 0: 0: 0: 0: 1: 0: 02010: 5: 3: 5: 0: 0: 1: 0: 0: 0: 02020: 0: 0: 0: 0: 0: 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. This year so far: 2 preliminary reports.

By rating

EF0
37
EF1
19
EF2
7
EF3
8
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.

Notable tornadoes

Strongest

F4, March 16, 1965

82.7 mile path Longest path

82.7 miles, F4

March 16, 1965, whole path Widest

1,500 yards, EF3

May 10, 2010

All 73 tornadoes, newest first

DateRatingPath lengthWidthDeathsInjuries
Jun 17, 2025EFU1 mi30 yd00
Jun 3, 2025EF00.2 mi30 yd00
May 6, 2015EF00.3 mi20 yd00
Apr 30, 2012EF112 mi200 yd00
Apr 30, 2012EF114 mi400 yd00
Apr 30, 2012EF11 mi50 yd00
Apr 30, 2012EF116 mi300 yd00
Apr 14, 2012EF112.9 mi600 yd00
Sep 17, 2011EF00.5 mi30 yd00
Sep 17, 2011EF00.5 mi10 yd00
Sep 17, 2011EF01.52 mi75 yd00
May 10, 2010EF15 mi500 yd00
May 10, 2010EF00.3 mi30 yd00
May 10, 2010EF00.3 mi30 yd00
May 10, 2010EF340.66 mi1,500 yd02
May 10, 2010EF00.5 mi20 yd00
Mar 29, 2007EF03 mi20 yd00
Sep 18, 2002F01 mi200 yd00
May 8, 2002F06 mi75 yd00
Apr 11, 2002F02.1 mi25 yd00
Mar 15, 2000F00.5 mi20 yd00
Apr 5, 1999F03 mi100 yd00
Oct 4, 1998F00.1 mi30 yd00
May 24, 1998F35.3 mi1,300 yd00
May 24, 1998F12 mi400 yd00

2026 preliminary reports not yet confirmed

Report dateLocationRating
Apr 23, 20266 ESE RenfrowNot yet rated
Mar 5, 20268 WNW JeffersonNot yet rated

Preliminary reports from the Storm Prediction Center. One tornado can be reported more than once, and NOAA confirms the final record months later.

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.