CLIMATE CHARTS

Grinnell, Iowa

Latitude: 41.7203 Longitude: -92.7489

Elevation: 904.9 feet (275.8 meters)

Grinnell, Iowa Temperature Chart Daily average maximum and minimum temperatures for Grinnell, 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 Grinnell, Iowa Precipitation Chart Precipitation chart for Grinnell, 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 GRINNELL, IA Daylight chart for GRINNELL, IA. Latitude 41.7. 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 Grinnell, Iowa

Imperial Units
Statistic Units Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Maximum Temperature °F 28.8 33.6 46.3 59.9 70.2 79.6 83.7 81.8 74.7 62.3 46.9 32.4
Minimum Temperature °F 10.0 13.5 24.3 34.7 46.2 56.6 61.2 58.9 49.0 37.0 26.3 14.2
Heating Degree Days °F 1413 1160 921 536 241 45 8 23 158 483 852 1293
Cooling Degree Days °F 0 0 0 5 30 138 238 188 63 7 0 0
Precipitation in. 0.99 1.41 2.34 3.59 4.47 4.84 4.34 4.58 3.47 2.81 2.28 1.47

Metric Units
Statistic Units Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Maximum Temperature °C -1.8 0.9 7.9 15.5 21.2 26.4 28.7 27.7 23.7 16.8 8.3 0.2
Minimum Temperature °C -12.2 -10.3 -4.3 1.5 7.9 13.7 16.2 14.9 9.4 2.8 -3.2 -9.9
Heating Degree Days °C 785 644 512 298 134 25 4 13 88 268 473 718
Cooling Degree Days °C 0 0 0 3 17 77 132 104 35 4 0 0
Precipitation cm. 2.51 3.58 5.94 9.12 11.35 12.29 11.02 11.63 8.81 7.14 5.79 3.73
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