Frederick County tornado history

37 tornadoes touched Frederick County, Maryland between 1950 and 2025 — about 0.5 a year. The strongest was rated F3 (May 22, 1983).

37tornadoes since 1950

F3strongest rating

0killed · 1 injured

14.4 milongest path · 1963

(E)F0(E)F1(E)F2(E)F3(E)F4(E)F5· dots = start point only

By rating

(E)F011

(E)F123

(E)F22

(E)F31

(E)F40

(E)F50

JFMAMJJASOND

Peak month: May.

’50’60’70’80’90’00’10’20

Date	Rating	Path	Width
May 22, 1983	F3	2 mi	37 yd
Sep 17, 2004	F2	3 mi	200 yd
Jul 31, 1978	F2	1.5 mi	100 yd
Jul 19, 1963	F1	14.4 mi	600 yd
Sep 17, 2004	F1	7 mi	100 yd
Feb 7, 2020	EF1	6.7 mi	150 yd
Jul 19, 1996	F1	6.2 mi	200 yd
Apr 16, 2011	EF1	4.4 mi	50 yd
Jun 14, 2004	F1	4.2 mi	150 yd
Sep 17, 2004	F1	4 mi	150 yd
Apr 16, 2011	EF1	3.5 mi	50 yd
Aug 14, 1999	F1	3 mi	50 yd

Date	Rating	Path	Width
May 3, 2021	EF0	0.8 mi	200 yd
May 3, 2021	EF0	0.6 mi	150 yd
Feb 7, 2020	EF1	6.7 mi	150 yd
May 30, 2019	EF0	6.5 mi	75 yd
Jun 20, 2015	EF0	1.5 mi	75 yd
May 17, 2011	EF0	1.1 mi	50 yd
Apr 16, 2011	EF1	1.2 mi	50 yd
Apr 16, 2011	EF1	4.4 mi	50 yd
Apr 16, 2011	EF1	3.5 mi	50 yd
Aug 12, 2010	EF0	0.2 mi	440 yd
Jul 31, 2009	EF1	2.6 mi	125 yd
Jul 31, 2009	EF1	2.6 mi	350 yd

How many tornadoes has Frederick County, Maryland had?

37 tornadoes touched Frederick County, Maryland between 1950 and 2025 in the NOAA Storm Prediction Center database — about 0.5 per year.

What was the strongest tornado in Frederick County?

The strongest rating recorded was F3 on May 22, 1983, with a 2-mile path.

When is tornado season in Frederick County?

Most of its tornadoes happened in May (9 of 37). Tornadoes can occur in any month, so keep alerts on year-round.

Right now: live tornado warnings map · alerts for your location. Dates link to that day’s full storm reports where available.