Waterloo

The tables below display average monthly climate and weather indicators in Waterloo Iowa. Temperature by: Fahrenheit / Centigrade Waterloo Temperature Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Annual Avg. Temperature -9.7 -6.6 1.2 9.1 15.7 20.6 22.8 21.3 16.6 10.1 2.1 -6.5 8.1 Avg. Max Temperature -4.6 -1.4 6.3 15.2 22.0 26.9 28.8 27.5 23.2 16.6 7.3 -1.7 13.8 Avg. Min Temperature -14.8 -11.9 -3.9 2.8 9.3 14.2 16.8 15.0 10.0 3.6 -3.2 -11.3 2.2 Days with Max Temp of 32 C or Higher 0.0 0.0 0.0 < 0.5 1.0 4.0 6.0 4.0 1.0 < 0.5 0.0 0.0 16.0 Days with Min Temp Below Freezing 31.0 27.0 24.0 11.0 1.0 0.0 0.0 0.0 1.0 9.0 22.0 30.0 156     Waterloo Heating and Cooling Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Annual Heating Degree Days 1562 1257 955 501 203 27.0 10.0 29.0 127 470 879 1386 7406 Cooling Degree Days 0.0 0.0 0.0 0.0 55.0 150 261 194 34.0 8.0 0.0 0.0 702     Waterloo Precipitation Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Annual Precipitation (inches) 0.8 1.1 2.3 3.3 4.1 4.5 4.8 3.6 3.5 2.6 1.8 1.3 33.7 Days with Precipitation 0.01 inch or More 7.0 7.0 9.0 10.0 11.0 10.0 9.0 9.0 9.0 7.0 7.0 7.0 104 Monthly Snowfall (inches) 7.5 6.6 5.8 1.6 0.0 < 0.05 0.0 0.0 0.0 0.1 3.6 7.3 32.5     Other Waterloo Weather Indicators Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Annual Average Wind Speed 11.4 11.4 12.3 12.6 11.1 9.8 8.4 8.3 9.0 10.2 11.1 11.1 10.6 Clear Days 8.0 7.0 6.0 6.0 7.0 7.0 9.0 9.0 10.0 10.0 5.0 7.0 91.0 Partly Cloudy Days 7.0 6.0 7.0 8.0 9.0 11.0 12.0 11.0 8.0 8.0 7.0 6.0 100.0 Cloudy Days 16.0 15.0 18.0 16.0 14.0 12.0 11.0 11.0 12.0 14.0 18.0 18.0 174 Avg. Relative Humidity 58.5 75.5 76.0 73.5 69.0 70.0 72.0 75.0 75.0 72.5 70.5 74.5 78.0

Weather information for other cities in Iowa • Des Moines Weather • Dubuque Weather • Sioux City Weather