Average First Frost Dates for Pennsylvania

About First Frost Dates in Pennsylvania

First Frost Dates were calculated using daily climate data from the period between 1991-2020.

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Interactive Map of Average First Frost Dates for Pennsylvania

Click on the map for more information. Click on the icon in the lower right to view the map legend. Add additional data layers using the icon in the upper right corner.

List of Average First Frost Dates for Locations in Pennsylvania

LocationAverage First Frost Dates
AllentownOctober 11 - 20
Allison ParkOctober 21 - 31
Allison ParkOctober 21 - 31
AltoonaOctober 11 - 20
BaldwinOctober 21 - 31
Bethel ParkOctober 21 - 31
BethlehemOctober 11 - 20
BroomallOctober 21 - 31
Bryn MawrOctober 21 - 31
CarlisleOctober 21 - 31
ChambersburgOctober 11 - 20
ChesterNovember 1 - 10
ChurchvilleOctober 21 - 31
Colonial ParkOctober 21 - 31
Drexel HillNovember 1 - 10
EastonOctober 11 - 20
ErieNovember 1 - 10
Franklin ParkOctober 21 - 31
FullertonOctober 11 - 20
HanoverOctober 21 - 31
HarrisburgOctober 21 - 31
HazletonOctober 1 - 10
HermitageOctober 11 - 20
HorshamOctober 21 - 31
JohnstownOctober 11 - 20
King of PrussiaOctober 11 - 20
LancasterOctober 21 - 31
LansdaleOctober 1 - 10
LebanonOctober 21 - 31
LevittownOctober 21 - 31
McKeesportOctober 11 - 20
MonroevilleOctober 11 - 20
MurrysvilleOctober 11 - 20
New CastleOctober 1 - 10
NorristownOctober 11 - 20
PaoliOctober 11 - 20
PhiladelphiaNovember 1 - 10
PhoenixvilleOctober 11 - 20
PittsburghOctober 21 - 31
PlumOctober 11 - 20
PottstownOctober 11 - 20
ReadingOctober 11 - 20
ScrantonOctober 11 - 20
State CollegeOctober 21 - 31
WeigelstownOctober 21 - 31
West ChesterOctober 21 - 31
West MifflinOctober 21 - 31
WhitehallOctober 21 - 31
Wilkes-BarreOctober 11 - 20
WilliamsportOctober 11 - 20
YorkOctober 21 - 31

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