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. Temperature14.620.134.248.360.269.173.170.361.950.135.720.346.5
Avg. Max Temperature23.729.443.359.371.680.583.981.573.761.845.228.956.9
Avg. Min Temperature5.410.625.037.148.757.662.259.050.038.426.211.736.0
Days with Max Temp of 90 F or Higher0.00.00.0< 0.51.04.06.04.01.0< 0.50.00.016.0
Days with Min Temp Below Freezing31.027.024.011.01.00.00.00.01.09.022.030.0156
 
Waterloo Heating and Cooling Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Annual
Heating Degree Days1562125795550120327.010.029.012747087913867406
Cooling Degree Days0.00.00.00.055.015026119434.08.00.00.0702
 
Waterloo Precipitation Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Annual
Precipitation (inches)0.81.12.33.34.14.54.83.63.52.61.81.333.7
Days with Precipitation 0.01 inch or More7.07.09.010.011.010.09.09.09.07.07.07.0104
Monthly Snowfall (inches)7.56.65.81.60.0< 0.050.00.00.00.13.67.332.5
 
Other Waterloo Weather Indicators Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Annual
Average Wind Speed11.411.412.312.611.19.88.48.39.010.211.111.110.6
Clear Days8.07.06.06.07.07.09.09.010.010.05.07.091.0
Partly Cloudy Days7.06.07.08.09.011.012.011.08.08.07.06.0100
Cloudy Days16.015.018.016.014.012.011.011.012.014.018.018.0174
Percent of Possible Sunshine0000000000000
Avg. Relative Humidity58.575.576.073.569.070.072.075.075.072.570.574.578.0

Weather information for other cities in Iowa

Portions of this site are based on the CIA World Fact Book, a public-domain work
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