Average Temperatures in Pennsylvania

Average annual temperatures for cities, communities and other locations throughout Pennsylvania are listed below in degrees Fahrenheit and Celsius.

You can jump to a separate table for Eastern and Western Pennsylvania.

The tables give the normals for maximum and minimum yearly temperatures based on weather data collected from 1991 to 2020 by the US National Centers for Environmental Information.

Place name links take you to more detailed temperature information for that location.

Eastern Pennsylvania

Average annual temperatures
High °F	Low °F	Place	High °C	Low °C
63	43	Allentown	17	6
62	44	Chambersburg	17	6
61	40	East Stroudsburg	16	4
58	36	George Stevenson Reservoir	15	2
64	42	Gettysburg	18	5
65	46	Harrisburg	18	8
64	43	Lancaster	18	6
62	43	Lebanon	17	6
59	37	Matamoras	15	3
66	44	Norristown	19	7
65	47	Philadelphia	18	9
63	44	Reading	17	7
59	42	State College	15	5
61	40	Sunbury	16	4
60	38	Towanda	16	3
61	42	Wilkes-Barre & Scranton	16	5
61	41	Williamsport	16	5
66	42	York	19	6

Western Pennsylvania

Average temperatures for the year
High °F	Low °F	Place	High °C	Low °C
60	42	Altoona	16	5
56	34	Bradford	13	1
59	38	Butler	15	3
57	39	DuBois	14	4
59	43	Erie	15	6
61	38	Indiana	16	3
59	38	Jamestown	15	3
57	40	Meadville	14	4
63	39	New Castle	17	4
61	43	Pittsburgh	16	6
63	41	Uniontown	17	5
58	38	Warren	15	3
62	39	Youghiogheny River Lake	17	4

Average Annual Temperatures in Pennsylvania

Eastern Pennsylvania

Western Pennsylvania

Reference

More Pennsylvania Weather Information