Average Precipitation for Pennsylvania in December





The tables below give monthly averages for rainfall plus snowfall during December at cities, towns and parks in Pennsylvania.

Each place has a total for the amount of precipitation it usually receives this month along with information on the number of days with wet weather. That includes the days when precipitation amounts to 0.01 inches (0.25 millimetres) or more.

The precipitation totals are averages based on weather data collected from 1981 to 2010 for the NOAA National Climatic Data Center.

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

Eastern Pennsylvania

Average monthly precipitation in December
Days Place Inches Milli­metres
11 Allentown 3.6 91
9 Chambersburg 3.2 82
13 George B. Stevenson Reservoir 3.0 76
10 Harrisburg 3.2 81
10 Lancaster 3.3 83
11 Matamoras 3.6 91
9 Norristown 4.2 106
11 Philadelphia 3.6 90
13 State College 2.9 73
10 Towanda 2.5 64
12 Wilkes-Barre & Scranton 2.7 68
11 Williamsport 2.9 74
10 York 3.3 84

Western Pennsylvania

December averages for total rainfall plus snowfall
Days Place Inches Milli­metres
10 Altoona 2.4 61
17 Bradford 4.0 101
17 Butler 3.2 82
19 Erie 3.7 95
15 Indiana 3.4 86
16 Jamestown 3.3 83
14 New Castle 3.0 75
15 Pittsburgh 2.9 72
15 Uniontown 3.1 78
18 Warren 3.9 98
16 Youghiogheny River Lake 3.6 91
Reference

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

Pennsylvania Precipitation
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