CLIMATE CHARTS

Norristown, Pennsylvania

Latitude: 40.1197 Longitude: -75.3583

Elevation: 69.9 feet (21.3 meters)

Norristown, Pennsylvania Temperature Chart Daily average maximum and minimum temperatures for Norristown, Pennsylvania Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec High & Low Temperature °F  °C -30 -34.4 -20 -28.9 -10 -23.3 0 -17.8 10 -12.2 20 -6.7 30 -1.1 40 4.4 50 10.0 60 15.6 70 21.1 80 26.7 90 32.2 100 37.8 110 43.3 Norristown, Pennsylvania Precipitation Chart Precipitation chart for Norristown, Pennsylvania Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Precipitation In. Cm. 0.00 0.00 0.10 0.25 0.20 0.51 0.30 0.76 0.40 1.02 0.50 1.27 0.60 1.52 0.70 1.78 0.80 2.03 0.90 2.29 1.00 2.54 Daylight Chart for NORRISTOWN, PA Daylight chart for NORRISTOWN, PA. Latitude 40.1. Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Sunrise/Sunset Daylight NOON NOON 0 0 2 2 4 4 6 6 8 8 10 10 12 12 14 2 16 4 18 6 20 8 22 10 24 12

Monthly Data Table for Norristown, Pennsylvania

Imperial Units
Statistic Units Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Maximum Temperature °F 40.9 43.5 52.5 64.4 75.0 83.1 88.2 86.5 79.7 67.8 56.6 45.0
Minimum Temperature °F 22.1 24.1 31.4 40.9 51.3 60.7 65.7 64.2 56.0 43.6 34.7 26.8
Heating Degree Days °F 1038 873 715 384 130 19 1 3 54 304 581 902
Cooling Degree Days °F 0 0 0 13 73 226 371 323 140 16 1 0
Precipitation in. 3.40 3.06 4.00 4.03 4.21 3.98 4.76 4.37 4.87 3.73 3.80 4.17

Metric Units
Statistic Units Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Maximum Temperature °C 4.9 6.4 11.4 18.0 23.9 28.4 31.2 30.3 26.5 19.9 13.7 7.2
Minimum Temperature °C -5.5 -4.4 -0.3 4.9 10.7 15.9 18.7 17.9 13.3 6.4 1.5 -2.9
Heating Degree Days °C 577 485 397 213 72 11 1 2 30 169 323 501
Cooling Degree Days °C 0 0 0 7 41 126 206 179 78 9 1 0
Precipitation cm. 8.64 7.77 10.16 10.24 10.69 10.11 12.09 11.10 12.37 9.47 9.65 10.59
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