Pennsylvania frost dates

Median last spring frost and first fall frost for 1,787 places in Pennsylvania. Last frost ranges from Mar 30 in Ardmore to May 24 in James City.

Largest cities

City	Last frost	First frost	Season	Zone
Philadelphia	Mar 30	Nov 17	232 d	7b
Pittsburgh	Apr 24	Oct 27	186 d	6b
Allentown	Apr 20	Oct 24	187 d	7a
Erie	Apr 26	Nov 4	192 d	6b
Reading	Apr 14	Oct 29	198 d	7a
Scranton	Apr 23	Oct 20	180 d	6b
Bethlehem	Apr 20	Oct 24	187 d	7a
Bensalem	Apr 21	Oct 25	187 d	7b
Lancaster	Apr 19	Oct 24	188 d	7a
Abington	Apr 11	Nov 1	204 d	7b
Levittown	Apr 21	Oct 25	187 d	7a
Havertown	Mar 30	Nov 17	232 d	7b
Harrisburg	Apr 15	Oct 23	191 d	7a
Altoona	Apr 25	Oct 21	179 d	6b
York	Apr 26	Oct 19	176 d	7a
State College	Apr 20	Oct 26	189 d	6b
Wilkes Barre	Apr 23	Oct 20	180 d	6b
Norristown	Apr 8	Oct 31	206 d	7a
Chester	Mar 30	Nov 16	231 d	7b
Bethel Park	Apr 18	Oct 28	193 d	6b
Wayne	Apr 8	Oct 31	206 d	7a
Williamsport	Apr 25	Oct 24	182 d	6b
Monroeville	Apr 22	Oct 25	186 d	6b
Cranberry Township	Apr 8	Nov 8	214 d	6b
Drexel Hill	Apr 2	Nov 10	222 d	7b
Easton	Apr 18	Oct 25	190 d	7a
Lebanon	Apr 20	Oct 25	188 d	7a
Hazleton	Apr 30	Oct 22	175 d	6b
Springfield	Apr 2	Nov 10	222 d	7b
Pottstown	Apr 20	Oct 23	186 d	7a
New Castle	Apr 30	Oct 23	176 d	6a
Allison Park	Apr 24	Oct 27	186 d	6b
Chambersburg	Apr 18	Oct 25	190 d	7a
Murrysville	Apr 22	Oct 25	186 d	6b
West Mifflin	Apr 18	Oct 28	193 d	6b
Johnstown	Apr 29	Oct 21	175 d	6b
King Of Prussia	Apr 8	Oct 31	206 d	7a
West Chester	Apr 26	Oct 18	175 d	7a
Mckeesport	May 2	Oct 20	171 d	6b
Carlisle	Apr 23	Oct 18	178 d	7a