CLIMATE CHARTS

Ottawa, Illinois

Latitude: 41.3283 Longitude: -88.9106

Elevation: 524.9 feet (160.0 meters)

Ottawa, Illinois Temperature Chart Daily average maximum and minimum temperatures for Ottawa, 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 Ottawa, Illinois Precipitation Chart Precipitation chart for Ottawa, 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 OTTAWA, IL Daylight chart for OTTAWA, IL. Latitude 41.3. 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 Ottawa, Illinois

Imperial Units
Statistic Units Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Maximum Temperature °F 31.5 36.4 48.8 62.4 72.4 81.0 84.1 82.6 76.7 64.8 50.0 35.6
Minimum Temperature °F 15.1 19.0 29.3 40.0 50.5 60.4 64.4 62.4 53.9 42.1 32.0 19.6
Heating Degree Days °F 1292 1044 805 425 169 26 3 9 95 371 720 1159
Cooling Degree Days °F 0 0 1 11 59 197 290 241 104 13 0 0
Precipitation in. 1.48 1.43 2.46 3.22 4.11 3.98 3.85 3.89 3.26 2.80 3.11 2.13

Metric Units
Statistic Units Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Maximum Temperature °C -0.3 2.4 9.3 16.9 22.4 27.2 28.9 28.1 24.8 18.2 10.0 2.0
Minimum Temperature °C -9.4 -7.2 -1.5 4.4 10.3 15.8 18.0 16.9 12.2 5.6 0.0 -6.9
Heating Degree Days °C 718 580 447 236 94 14 2 5 53 206 400 644
Cooling Degree Days °C 0 0 1 6 33 109 161 134 58 7 0 0
Precipitation cm. 3.76 3.63 6.25 8.18 10.44 10.11 9.78 9.88 8.28 7.11 7.90 5.41
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