CLIMATE CHARTS

Quincy Dam 21, Illinois

Latitude: 39.9058 Longitude: -91.4281

Elevation: 482.9 feet (147.2 meters)

Quincy Dam 21, Illinois Temperature Chart Daily average maximum and minimum temperatures for Quincy Dam 21, 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 Quincy Dam 21, Illinois Precipitation Chart Precipitation chart for Quincy Dam 21, 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 QUINCY DAM 21, IL Daylight chart for QUINCY DAM 21, IL. Latitude 39.9. 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 Quincy Dam 21, Illinois

Imperial Units
Statistic Units Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Maximum Temperature °F 35.2 40.4 51.6 64.2 73.7 83.0 86.9 85.7 78.1 66.5 52.6 38.5
Minimum Temperature °F 19.0 22.9 31.9 42.8 53.6 62.9 67.2 65.6 56.5 44.9 34.6 22.7
Heating Degree Days °F 1175 934 723 362 120 13 0 3 68 310 643 1066
Cooling Degree Days °F 0 0 2 17 79 251 374 333 137 21 1 0
Precipitation in. 1.48 1.85 2.63 3.71 4.59 3.86 4.25 3.49 3.15 2.83 2.77 2.10

Metric Units
Statistic Units Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Maximum Temperature °C 1.8 4.7 10.9 17.9 23.2 28.3 30.5 29.8 25.6 19.2 11.4 3.6
Minimum Temperature °C -7.2 -5.1 -0.1 6.0 12.0 17.2 19.6 18.7 13.6 7.2 1.4 -5.2
Heating Degree Days °C 653 519 402 201 67 7 0 2 38 172 357 592
Cooling Degree Days °C 0 0 1 9 44 139 208 185 76 12 1 0
Precipitation cm. 3.76 4.70 6.68 9.42 11.66 9.80 10.79 8.86 8.00 7.19 7.04 5.33
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