Average Temperatures in Pennsylvania

Average annual temperatures for cities, towns, parks and lakes throughout Pennsylvania are listed below in degrees Fahrenheit and Celsius.

The tables give the normals for maximum and minimum yearly temperatures based on weather data collected from 1981 to 2010.

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

Eastern Pennsylvania

Average annual temperatures
High °F	Low °F	Place	High °C	Low °C
61	41	Allentown	16	5
61	38	Beltzville Lake Dam	16	3
62	43	Chambersburg	17	6
60	38	George B. Stevenson Reservoir	16	3
63	44	Harrisburg	17	7
63	43	Lancaster	17	6
60	37	Matamoras	15	3
65	44	Norristown	19	6
65	47	Philadelphia	18	8
59	41	State College	15	5
59	38	Towanda	15	3
59	40	Wilkes-Barre & Scranton	15	5
60	41	Williamsport	16	5
65	43	York	18	6

Average temperatures for the year
High °F	Low °F	Place	High °C	Low °C
59	40	Altoona	15	4
56	34	Bradford	13	1
60	38	Butler	15	3
58	42	Erie	14	6
61	38	Indiana	16	3
58	37	Jamestown	14	3
61	39	New Castle	16	4
61	42	Pittsburgh	16	6
63	40	Uniontown	17	4
58	38	Warren	15	3
61	38	Youghiogheny River Lake	16	3