Average Precipitation for Pennsylvania in May





The tables below give monthly averages for rainfall plus snowfall during May 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 May
Days Place Inches Milli­metres
12 Allentown 4.1 105
12 Chambersburg 4.2 106
13 George B. Stevenson Reservoir 3.7 95
13 Harrisburg 4.1 103
13 Lancaster 3.9 99
12 Matamoras 3.7 94
12 Norristown 4.2 107
11 Philadelphia 3.7 94
14 State College 3.5 88
12 Towanda 3.1 78
13 Wilkes-Barre & Scranton 3.5 89
13 Williamsport 3.7 93
13 York 4.2 106

Western Pennsylvania

May averages for total rainfall plus snowfall
Days Place Inches Milli­metres
13 Altoona 3.7 94
13 Bradford 4.4 112
14 Butler 4.2 106
13 Erie 3.4 87
14 Indiana 4.4 111
13 Jamestown 4.0 102
14 New Castle 3.7 94
13 Pittsburgh 4.0 100
15 Uniontown 4.5 113
13 Warren 4.3 109
16 Youghiogheny River Lake 4.8 123
Reference

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

Pennsylvania Precipitation
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