Average Annual Temperatures in Pennsylvania

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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.

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
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

Western Pennsylvania

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
Reference

National Climatic Data Center. NOAA's 1981-2010 Climate Normals.

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