Chester County tornado history

31 tornadoes touched Chester County, Pennsylvania between 1950 and 2025 — about 0.4 a year. The strongest was rated F3 (Mar 22, 1955). Tornadoes here killed 3 and injured 32 people.

31tornadoes since 1950

F3strongest rating

3killed · 32 injured

9.6 milongest path · 1955

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

By rating

(E)F06

(E)F117

(E)F26

(E)F32

(E)F40

(E)F50

By month

JFMAMJJASOND

Peak month: July.

By decade

’50’60’70’80’90’00’10’20

Strongest tornadoes

Date	Rating	Path	Width	Injured	Killed
Mar 22, 1955	F3	9.6 mi	600 yd	0	1
Jul 27, 1994	F3	4 mi	100 yd	11	0
Sep 5, 1979	F2	4.1 mi	63 yd	4	1
Sep 1, 2021	EF2	5.9 mi	350 yd	0	0
Jul 17, 1992	F2	4 mi	100 yd	0	0
Apr 3, 1975	F2	3 mi	20 yd	0	0
Aug 28, 1992	F2	2 mi	100 yd	3	0
Aug 19, 1955	F2	0.1 mi	10 yd	0	0
Jun 9, 1993	F1	1.5 mi	50 yd	0	1
Jun 1, 1998	F1	6 mi	100 yd	0	0
Jul 9, 1990	F1	5 mi	50 yd	0	0
Jun 22, 1953	F1	3.6 mi	17 yd	0	0

Most recent tornadoes

Date	Rating	Path	Width	Injured
Jun 16, 2023	EF1	1.8 mi	250 yd	0
Sep 1, 2021	EF2	5.9 mi	350 yd	0
Jun 30, 2015	EF1	0.7 mi	100 yd	0
Sep 27, 2010	EF0	1.4 mi	100 yd	0
Aug 29, 2006	F1	2 mi	150 yd	0
Nov 26, 1999	F1	1.8 mi	100 yd	12
Jun 1, 1998	F1	6 mi	100 yd	0
May 31, 1998	F1	3 mi	100 yd	0
Apr 1, 1998	F1	0.5 mi	100 yd	1
Nov 2, 1997	F0	0.1 mi	50 yd	0
Sep 8, 1996	F0	0.5 mi	50 yd	0
Aug 13, 1994	F0	0.5 mi	100 yd	0

Deadliest: Mar 22, 1955, F3, 1 killed.

Nearby counties

Delaware County, PA6 Montgomery County, PA20 Lancaster County, PA39 New Castle County, DE28 Cecil County, MD19 Berks County, PA29 Philadelphia County, PA11 Salem County, NJ4

Questions

How many tornadoes has Chester County, Pennsylvania had?

31 tornadoes touched Chester County, Pennsylvania between 1950 and 2025 in the NOAA Storm Prediction Center database — about 0.4 per year.

What was the strongest tornado in Chester County?

The strongest rating recorded was F3 on Mar 22, 1955, with a 9.6-mile path and 1 deaths.

When is tornado season in Chester County?

Most of its tornadoes happened in July (6 of 31). 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 (2004 onward).