CLIMATE CHARTS

Rathbun Dam, Iowa

Latitude: 40.8250 Longitude: -92.8925

Elevation: 964.9 feet (294.1 meters)

Rathbun Dam, Iowa Temperature Chart Daily average maximum and minimum temperatures for Rathbun Dam, Iowa 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 Rathbun Dam, Iowa Precipitation Chart Precipitation chart for Rathbun Dam, Iowa 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 RATHBUN DAM, IA Daylight chart for RATHBUN DAM, IA. Latitude 40.8. 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 Rathbun Dam, Iowa

Imperial Units
Statistic Units Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Maximum Temperature °F 31.8 36.7 49.2 61.6 71.3 80.6 85.0 83.8 76.0 64.0 49.5 35.6
Minimum Temperature °F 13.9 17.3 28.6 40.0 51.1 61.0 65.5 63.5 53.8 41.9 30.2 17.7
Heating Degree Days °F 1307 1064 810 437 167 21 2 6 101 387 755 1189
Cooling Degree Days °F 0 0 1 11 49 195 320 275 98 13 0 0
Precipitation in. 0.87 1.29 2.15 3.70 5.05 4.97 5.56 4.65 4.00 3.06 2.25 1.33

Metric Units
Statistic Units Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Maximum Temperature °C -0.1 2.6 9.6 16.4 21.8 27.0 29.4 28.8 24.4 17.8 9.7 2.0
Minimum Temperature °C -10.1 -8.2 -1.9 4.4 10.6 16.1 18.6 17.5 12.1 5.5 -1.0 -7.9
Heating Degree Days °C 726 591 450 243 93 12 1 3 56 215 419 661
Cooling Degree Days °C 0 0 1 6 27 108 178 153 54 7 0 0
Precipitation cm. 2.21 3.28 5.46 9.40 12.83 12.62 14.12 11.81 10.16 7.77 5.71 3.38
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