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.
Excessive HeatJuly 5, 2010
Montgomery · 3 killed ·
HeatJuly 16, 2006
Philadelphia · 3 killed ·
HeatJune 13, 2005
Philadelphia · 3 killed ·
Cold/Wind ChillJanuary 14, 2003
Philadelphia · 3 killed ·
HeatAugust 1, 2002
Chester · 3 killed ·
HeatAugust 1, 2002
Philadelphia · 3 killed ·
HeatAugust 1, 2002
Montgomery · 3 killed ·
HeatJune 24, 2002
Philadelphia · 3 killed ·
HeatJuly 23, 1999
Philadelphia · 3 killed ·
HeatJuly 21, 1998
Montgomery · 3 killed ·
Cold/Wind ChillJanuary 17, 1997
Philadelphia · 3 killed ·
Flash FloodSeptember 1, 2021
Montgomery · 2 killed · $20.0M damage
Flash FloodSeptember 8, 1996
Montgomery · 2 killed · $20.0M damage
FloodJune 27, 2006
Monroe · 2 killed · $16.0M damage
Flash FloodJune 12, 1996
Bucks · 2 killed · $14.5M damage
Flash FloodMay 9, 2004
York · 2 killed · $5.5M damage
Winter StormFebruary 16, 2003
Philadelphia · 2 killed · 1 injured · $4.0M damage
Flash FloodSeptember 9, 2023
Lackawanna · 2 killed · 2 injured · $2.5M damage
Tornado (F3)June 2, 1998
Wyoming · 2 killed · 15 injured · $2.2M damage
Flash FloodNovember 5, 2017
Erie · 2 killed · $270K damage
Cold/Wind ChillFebruary 20, 2015
Philadelphia · 2 killed · $250K damage
Thunderstorm WindDecember 19, 2025
Philadelphia · 2 killed · $20K damage
Thunderstorm WindSeptember 22, 2010
Lycoming · 2 killed · $15K damage
LightningJuly 6, 2020
Bradford · 2 killed · 2 injured ·
Flash FloodJuly 11, 2019
Berks · 2 killed ·
LightningJune 13, 2019
Westmoreland · 2 killed ·
Excessive HeatJuly 19, 2015
Philadelphia · 2 killed ·
Excessive HeatJuly 15, 2013
Philadelphia · 2 killed ·
HeatJuly 1, 2012
Montgomery · 2 killed ·
HeatAugust 1, 2011
Philadelphia · 2 killed ·
Excessive HeatJuly 21, 2011
Montgomery · 2 killed ·
Excessive HeatJuly 16, 2010
Philadelphia · 2 killed ·
Excessive HeatJuly 16, 2010
Delaware · 2 killed ·
Excessive HeatJune 27, 2010
Philadelphia · 2 killed ·
HeatJune 2, 2010
Philadelphia · 2 killed ·
HeatAugust 1, 2006
Montgomery · 2 killed ·
Thunderstorm WindJuly 18, 2006
Chester · 2 killed · 1 injured ·
HeatAugust 11, 2005
Philadelphia · 2 killed ·
HeatJuly 25, 2005
Montgomery · 2 killed ·
Cold/Wind ChillJanuary 9, 2004
Philadelphia · 2 killed ·
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.