Pennsylvania Storm & Severe Weather History
Since 1996, Pennsylvania has logged 48,588 severe-weather events — about 1,567 a year — with 676 direct deaths, 1,883 injuries and $3.6B in reported property damage.
By event type
Thunderstorm Wind19,22831 d$270.2M
Flash Flood4,72773 d$2.0B
Hail4,638—$7.9M
Winter Weather3,47014 d$2.6M
Heavy Snow2,4524 d$32.3M
Winter Storm2,44712 d$80.1M
Flood2,20129 d$837.4M
High Wind1,62816 d$108.8M
Strong Wind1,25910 d$8.4M
Drought802——
Heat700318 d—
Tornado5777 d$183.9M
Ice Storm568—$1.4M
Heavy Rain5672 d$1K
Extreme Cold/Wind Chill5616 d$960K
Lightning55226 d$17.5M
Events by year
19962026
Notable events (400)
Events with deaths, major damage, or a strong tornado — deadliest first.
High WindNovember 13, 2003
Perry · 2 killed ·
HeatJune 23, 2003
Philadelphia · 2 killed ·
HeatJuly 28, 2002
Montgomery · 2 killed ·
HeatJuly 15, 2002
Philadelphia · 2 killed ·
HeatAugust 6, 2001
Montgomery · 2 killed ·
HeatJuly 24, 2001
Philadelphia · 2 killed ·
HeatJune 26, 2001
Philadelphia · 2 killed ·
HeatAugust 2, 2000
Philadelphia · 2 killed ·
HeatJune 25, 2000
Philadelphia · 2 killed ·
HeatMay 6, 2000
Chester · 2 killed ·
Extreme Cold/Wind ChillJanuary 14, 2000
Philadelphia · 2 killed ·
HeatJuly 5, 1999
Perry · 2 killed ·
HeatJuly 4, 1999
Bucks · 2 killed · 6 injured ·
HeatJune 7, 1999
Montgomery · 2 killed · 1 injured ·
Winter StormJanuary 2, 1999
Allegheny · 2 killed · 1 injured ·
HeatJune 25, 1998
Philadelphia · 2 killed ·
HeatAugust 16, 1997
Philadelphia · 2 killed ·
Flash FloodJune 27, 2006
Susquehanna · 1 killed · $100.0M damage
Flash FloodJuly 19, 1996
Clarion · 1 killed · 1 injured · $75.0M damage
Flash FloodJune 27, 2006
Wayne · 1 killed · $50.0M damage
Flash FloodSeptember 1, 2021
Chester · 1 killed · $40.0M damage
Flash FloodJune 16, 2001
Montgomery · 1 killed · $33.5M damage
Flash FloodJuly 21, 2003
Crawford · 1 killed · $30.0M damage
FloodSeptember 17, 2004
Allegheny · 1 killed · 92 injured · $26.0M damage
Flash FloodSeptember 1, 2021
Bucks · 1 killed · $25.0M damage
Flash FloodSeptember 16, 1999
Delaware · 1 killed · 14 injured · $15.0M damage
Thunderstorm WindMay 31, 2002
Allegheny · 1 killed · 54 injured · $10.0M damage
Flash FloodJuly 1, 1997
Allegheny · 1 killed · $10.0M damage
Tornado (EF2)September 1, 2021
Montgomery · 1 killed · 2 injured · $5.0M damage
FloodSeptember 7, 2011
Bradford · 1 killed · $5.0M damage
Flash FloodSeptember 16, 1999
Philadelphia · 1 killed · $4.2M damage
Tornado (F3)May 31, 1998
Somerset · 1 killed · 15 injured · $4.0M damage
Flash FloodSeptember 16, 1999
Chester · 1 killed · 1 injured · $3.0M damage
BlizzardJanuary 7, 1996
Montgomery · 1 killed · $2.7M damage
High WindOctober 29, 2012
Berks · 1 killed · $2.5M damage
BlizzardJanuary 7, 1996
Lehigh · 1 killed · $2.2M damage
Flash FloodJune 27, 2013
Clinton · 1 killed · $2.1M damage
FloodSeptember 7, 2011
Lebanon · 1 killed · $2.0M damage
Tornado (F1)December 1, 2006
Dauphin · 1 killed · $2.0M damage
Flash FloodSeptember 28, 2004
Philadelphia · 1 killed · $2.0M damage
Source: NOAA/NCEI Storm Events Database. Counts are every logged event since 1996; the "notable" list is filtered to events with fatalities, major damage or a strong tornado. Damage is the reporting office's estimate. A record of past weather is not a forecast. See About the Data.