Dewey County, Oklahoma tornadoes

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55confirmed tornadoes since NOAA records began in 1950 (the first here in 1950). Most recent: June 15, 2019, EF1. 2026 so far: 0 preliminary reports preliminary

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Map

Every tornado path in the county

Fromto

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 Dewey County

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The record

At a glance

Total551950 to 2025

Per year0.7average since 1950

Peak monthMay21 of 55

StrongestEF3May 24, 2011

Deaths1whole paths, see note

Injuries9whole paths, see note

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

Seasons

When tornadoes hit here

By month

May is the peak month, with 21 of 55 tornadoes.

By time of day

Most often around 7:00 PM. Times as recorded by NOAA, mostly Central Standard Time.

By year, 1950 to 2025

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

EF1

EF2

EF3

Unknown

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

All 55 tornadoes, newest first

Tornadoes, newest first
Date	Rating	Path length	Width	Deaths	Injuries
Jun 15, 2019	EF1	3.15 mi	100 yd	0	0
May 18, 2017	EFU	0.2 mi	50 yd	0	0
May 16, 2015	EF1	0.5 mi	50 yd	0	0
May 6, 2015	EF0	0.3 mi	30 yd	0	0
Apr 26, 2013	EF0	0.16 mi	50 yd	0	0
May 24, 2011	EF3	13.2 mi	880 yd	1	2
May 19, 2010	EF0	5.9 mi	40 yd	0	0
May 5, 2007	EF2	16 mi	600 yd	0	0
Mar 20, 2006	F0	0.2 mi	20 yd	0	0
Mar 27, 2004	F0	0.1 mi	20 yd	0	0
May 5, 2002	F1	1 mi	75 yd	0	0
Apr 17, 2002	F3	8 mi	600 yd	0	0
Sep 21, 1998	F0	0.5 mi	50 yd	0	0
Sep 5, 1992	F0	0.2 mi	40 yd	0	0
Sep 5, 1992	F0	0.1 mi	30 yd	0	0
Sep 5, 1992	F0	0.1 mi	30 yd	0	0
May 15, 1991	F0	0.3 mi	30 yd	0	0
Mar 26, 1991	F0	0.1 mi	20 yd	0	0
Oct 31, 1984	F2	6 mi	200 yd	0	0
Apr 20, 1984	F0	0.1 mi	10 yd	0	0
May 19, 1982	F0	0.1 mi	10 yd	0	0
May 15, 1982	F2	0.5 mi	50 yd	0	0
Oct 16, 1980	F1	10.4 mi	400 yd	0	3
Aug 21, 1979	F0	8.8 mi	10 yd	0	0
Aug 2, 1977	F2	8 mi	10 yd	0	0
Mar 2, 1977	F1	3.8 mi	300 yd	0	0
Jun 8, 1975	F1	2 mi	50 yd	0	0
Apr 19, 1972	F2	15.5 mi	77 yd	0	0
Jun 27, 1969	F0	0.1 mi	10 yd	0	0
Jun 27, 1969	F1	0.1 mi	10 yd	0	0
Sep 20, 1965	F0	0.1 mi	10 yd	0	0
Sep 20, 1965	F0	0.5 mi	100 yd	0	0
May 6, 1965	F0	0.1 mi	10 yd	0	1
Jul 25, 1964	F0	0.1 mi	500 yd	0	0
May 5, 1964	F1	1 mi	400 yd	0	0
May 1, 1964	F0	0.1 mi	10 yd	0	0
May 4, 1961	F2	1 mi	400 yd	0	0
May 4, 1961	F1	1 mi	400 yd	0	0
Apr 30, 1961	F0	0.1 mi	10 yd	0	0
Apr 30, 1961	F0	0.1 mi	10 yd	0	0
Apr 30, 1961	F0	0.1 mi	10 yd	0	0
May 4, 1959	F1	0.3 mi	100 yd	0	0
May 4, 1959	F1	7.2 mi	300 yd	0	0
May 3, 1959	F1	0.1 mi	10 yd	0	0
Jun 19, 1958	F1	1.5 mi	30 yd	0	0
Jul 1, 1956	F1	0.1 mi	10 yd	0	1
Jun 17, 1956	F1	0.1 mi	10 yd	0	0
Jul 4, 1955	F1	0.1 mi	10 yd	0	0
May 25, 1955	F2	5.1 mi	300 yd	0	1
Apr 29, 1954	F1	0.1 mi	10 yd	0	0
Apr 29, 1954	F2	33.3 mi	10 yd	0	0
Apr 20, 1952	F1	0.1 mi	20 yd	0	0
Apr 8, 1952	F0	45.9 mi	100 yd	0	0
May 19, 1951	F2	2 mi	67 yd	0	0
May 16, 1950	F1	7.3 mi	100 yd	0	1

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.