CLIMATE CHARTS

Harrisburg, Illinois

Latitude: 37.7408 Longitude: -88.5244

Elevation: 365.2 feet (111.3 meters)

Harrisburg, Illinois Temperature Chart Daily average maximum and minimum temperatures for Harrisburg, Illinois 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 Harrisburg, Illinois Precipitation Chart Precipitation chart for Harrisburg, Illinois 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 HARRISBURG, IL Daylight chart for HARRISBURG, IL. Latitude 37.7. 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 Harrisburg, Illinois

Imperial Units
Statistic Units Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Maximum Temperature °F 41.7 46.9 57.4 68.8 77.1 85.2 88.6 88.3 81.7 70.8 57.7 44.9
Minimum Temperature °F 23.2 26.9 35.0 45.0 54.9 63.8 67.3 65.2 56.3 44.5 36.1 26.5
Heating Degree Days °F 1009 787 586 275 80 7 0 1 49 256 546 908
Cooling Degree Days °F 0 0 3 32 111 292 402 366 169 28 3 0
Precipitation in. 3.42 3.42 4.67 4.43 5.07 4.46 3.75 3.00 3.05 3.75 4.50 3.94

Metric Units
Statistic Units Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Maximum Temperature °C 5.4 8.3 14.1 20.4 25.1 29.6 31.4 31.3 27.6 21.6 14.3 7.2
Minimum Temperature °C -4.9 -2.8 1.7 7.2 12.7 17.7 19.6 18.4 13.5 6.9 2.3 -3.1
Heating Degree Days °C 561 437 326 153 44 4 0 1 27 142 303 504
Cooling Degree Days °C 0 0 2 18 62 162 223 203 94 16 2 0
Precipitation cm. 8.69 8.69 11.86 11.25 12.88 11.33 9.53 7.62 7.75 9.53 11.43 10.01
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