Allegheny County tornado history

28 tornadoes touched Allegheny County, Pennsylvania between 1950 and 2025 — about 0.4 a year. The strongest was rated F4 (Jun 3, 1980). Tornadoes here killed 2 and injured 275 people.

28tornadoes since 1950

F4strongest rating

2killed · 275 injured

45.3 milongest path · 1975

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

By rating

(E)F012

(E)F110

(E)F23

(E)F31

(E)F41

(E)F50

unrated1

By month

JFMAMJJASOND

Peak month: June.

By decade

’50’60’70’80’90’00’10’20

Strongest tornadoes

Date	Rating	Path	Width	Injured	Killed
Jun 3, 1980	F4	11.8 mi	10 yd	140	0
Aug 3, 1963	F3	0.1 mi	10 yd	70	2
Jun 4, 1975	F2	45.3 mi	30 yd	0	0
May 22, 1983	F2	38 mi	200 yd	10	0
May 13, 1956	F2	0.7 mi	200 yd	5	0
Jun 2, 1998	F1	32 mi	700 yd	50	0
Jun 26, 2024	EF1	11.5 mi	300 yd	0	0
Jun 26, 2024	EF1	6.8 mi	100 yd	0	0
Nov 18, 2017	EF1	5.4 mi	125 yd	0	0
Oct 21, 2021	EF1	4.7 mi	400 yd	0	0
Apr 7, 2020	EF1	3.8 mi	250 yd	0	0
May 17, 2024	EF1	1.9 mi	125 yd	0	0

Most recent tornadoes

Date	Rating	Path	Width
Nov 20, 2024	EF0	1 mi	75 yd
Jun 26, 2024	EF1	6.8 mi	100 yd
Jun 26, 2024	EF1	11.5 mi	300 yd
May 17, 2024	unrated	0.6 mi	50 yd
May 17, 2024	EF0	5.8 mi	75 yd
May 17, 2024	EF1	1.9 mi	125 yd
May 7, 2024	EF1	0.2 mi	150 yd
Oct 21, 2021	EF0	0.5 mi	100 yd
Oct 21, 2021	EF1	4.7 mi	400 yd
Jun 21, 2021	EF0	1.3 mi	50 yd
Apr 7, 2020	EF1	3.8 mi	250 yd
Nov 18, 2017	EF1	5.4 mi	125 yd

Deadliest: Aug 3, 1963, F3, 2 killed.

Nearby counties

Washington County, PA22 Beaver County, PA24 Westmoreland County, PA50 Butler County, PA28 Hancock County, WV1 Armstrong County, PA11 Lawrence County, PA12 Jefferson County, OH8

Questions

How many tornadoes has Allegheny County, Pennsylvania had?

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

What was the strongest tornado in Allegheny County?

The strongest rating recorded was F4 on Jun 3, 1980, with a 11.8-mile path.

When is tornado season in Allegheny County?

Most of its tornadoes happened in June (10 of 28). 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).