CLIMATE CHARTS

Mason City, Illinois

Latitude: 40.2272 Longitude: -89.6947

Elevation: 600.1 feet (182.9 meters)

Mason City, Illinois Temperature Chart Daily average maximum and minimum temperatures for Mason City, 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 Mason City, Illinois Precipitation Chart Precipitation chart for Mason City, 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 MASON CITY, IL Daylight chart for MASON CITY, IL. Latitude 40.2. 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 Mason City, Illinois

Imperial Units
Statistic Units Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Maximum Temperature °F 33.6 38.0 50.9 64.2 73.9 82.9 85.7 84.4 78.5 66.4 51.3 36.9
Minimum Temperature °F 16.0 19.4 29.5 41.4 51.9 61.8 64.7 62.6 53.6 42.7 31.2 20.1
Heating Degree Days °F 1246 1016 770 378 138 15 1 6 82 342 713 1131
Cooling Degree Days °F 0 0 1 12 73 236 317 269 114 18 0 0
Precipitation in. 1.92 1.61 2.49 3.61 4.07 4.04 4.60 3.29 3.04 2.87 3.11 2.33

Metric Units
Statistic Units Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Maximum Temperature °C 0.9 3.3 10.5 17.9 23.3 28.3 29.8 29.1 25.8 19.1 10.7 2.7
Minimum Temperature °C -8.9 -7.0 -1.4 5.2 11.1 16.6 18.2 17.0 12.0 5.9 -0.4 -6.6
Heating Degree Days °C 692 564 428 210 77 8 1 3 46 190 396 628
Cooling Degree Days °C 0 0 1 7 41 131 176 149 63 10 0 0
Precipitation cm. 4.88 4.09 6.32 9.17 10.34 10.26 11.68 8.36 7.72 7.29 7.90 5.92
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