CLIMATE CHARTS

Pontiac, Illinois

Latitude: 40.8853 Longitude: -88.6389

Elevation: 649.9 feet (198.1 meters)

Pontiac, Illinois Temperature Chart Daily average maximum and minimum temperatures for Pontiac, 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 Pontiac, Illinois Precipitation Chart Precipitation chart for Pontiac, 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 PONTIAC, IL Daylight chart for PONTIAC, IL. Latitude 40.9. 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 Pontiac, Illinois

Imperial Units
Statistic Units Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Maximum Temperature °F 31.4 36.3 48.6 62.2 72.5 81.2 83.9 82.4 76.9 64.3 49.8 35.4
Minimum Temperature °F 15.7 19.4 29.0 39.6 50.3 60.6 64.4 62.5 54.2 42.4 32.0 19.9
Heating Degree Days °F 1285 1040 813 435 173 26 3 9 92 375 724 1158
Cooling Degree Days °F 0 0 1 12 61 203 286 240 108 14 0 0
Precipitation in. 1.96 1.59 2.83 3.28 3.88 3.66 4.08 3.70 3.02 3.05 3.22 2.38

Metric Units
Statistic Units Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Maximum Temperature °C -0.3 2.4 9.2 16.8 22.5 27.3 28.8 28.0 24.9 17.9 9.9 1.9
Minimum Temperature °C -9.1 -7.0 -1.7 4.2 10.2 15.9 18.0 16.9 12.3 5.8 0.0 -6.7
Heating Degree Days °C 714 578 452 242 96 14 2 5 51 208 402 643
Cooling Degree Days °C 0 0 1 7 34 113 159 133 60 8 0 0
Precipitation cm. 4.98 4.04 7.19 8.33 9.86 9.30 10.36 9.40 7.67 7.75 8.18 6.05
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