Average Temperatures for Pennsylvania in January

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

The tables give the normals for maximum and minimum monthly 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 January temperatures
High °F Low °F Place High °C Low °C
36 20 Allentown 2   -7
36 15 Beltzville Lake Dam 2 -10
37 23 Chambersburg 3   -5
34 17 George B. Stevenson Reservoir 1   -8
38 23 Harrisburg 3   -5
38 22 Lancaster 3   -6
34 16 Matamoras 1   -9
41 22 Norristown 5   -6
40 26 Philadelphia 5   -4
34 20 State College 1   -7
34 16 Towanda 1   -9
33 19 Wilkes-Barre & Scranton 1   -8
34 19 Williamsport 1   -7
40 22 York 5   -6

Western Pennsylvania

Average daily temperatures in January
High °F Low °F Place High °C Low °C
34 20 Altoona 1   -7
30 12 Bradford -1 -11
35 18 Butler 1   -8
34 21 Erie 1   -6
36 17 Indiana 2   -8
32 16 Jamestown 0   -9
35 18 New Castle 2   -8
36 21 Pittsburgh 2   -6
39 20 Uniontown 4   -7
32 17 Warren 0   -9
36 18 Youghiogheny River Lake 2   -8
Reference

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

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