CLIMATE CHARTS

Altona, Illinois

Latitude: 41.1203 Longitude: -90.1642

Elevation: 734.9 feet (224.0 meters)

Altona, Illinois Temperature Chart Daily average maximum and minimum temperatures for Altona, 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 Altona, Illinois Precipitation Chart Precipitation chart for Altona, 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 ALTONA, IL Daylight chart for ALTONA, IL. Latitude 41.1. 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 Altona, Illinois

Imperial Units
Statistic Units Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Maximum Temperature °F 30.1 34.8 48.3 61.5 72.3 81.0 84.3 81.9 75.9 63.6 48.1 33.7
Minimum Temperature °F 13.3 16.5 26.9 38.1 49.1 59.1 62.3 60.1 51.1 39.6 28.7 17.6
Heating Degree Days °F 1342 1101 850 458 173 20 3 7 100 426 798 1219
Cooling Degree Days °F 0 0 0 2 40 171 260 192 54 10 0 0
Precipitation in. 1.62 1.79 2.91 3.73 4.37 4.38 4.09 3.91 3.44 2.87 2.86 2.16

Metric Units
Statistic Units Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Maximum Temperature °C -1.1 1.6 9.1 16.4 22.4 27.2 29.1 27.7 24.4 17.6 8.9 0.9
Minimum Temperature °C -10.4 -8.6 -2.8 3.4 9.5 15.1 16.8 15.6 10.6 4.2 -1.8 -8.0
Heating Degree Days °C 746 612 472 254 96 11 2 4 56 237 443 677
Cooling Degree Days °C 0 0 0 1 22 95 144 107 30 6 0 0
Precipitation cm. 4.11 4.55 7.39 9.47 11.10 11.13 10.39 9.93 8.74 7.29 7.26 5.49
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