Rockford

The tables below display average monthly climate and weather indicators in Rockford Illinois.

Temperature by: Fahrenheit / Centigrade

Rockford Temperature Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Annual
Avg. Temperature18.222.935.047.759.168.873.270.963.151.538.024.047.7
Avg. Max Temperature26.631.643.858.470.880.283.881.474.162.346.331.857.6
Avg. Min Temperature9.814.226.136.947.457.462.560.352.040.629.516.137.7
Days with Max Temp of 90 F or Higher0.00.00.0< 0.51.03.06.03.01.0< 0.50.00.014.0
Days with Min Temp Below Freezing29.026.023.09.01.00.00.00.01.07.020.028.0144
 
Rockford Heating and Cooling Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Annual
Heating Degree Days1451117993051923924.05.015.099.042781012716969
Cooling Degree Days0.00.00.00.056.013825919842.09.00.00.0702
 
Rockford Precipitation Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Annual
Precipitation (inches)1.31.12.53.73.74.54.14.23.82.92.62.136.3
Days with Precipitation 0.01 inch or More9.08.011.012.012.010.010.09.09.09.09.010.0118
Monthly Snowfall (inches)9.07.06.31.30.0< 0.05< 0.05< 0.050.00.12.79.135.5
 
Other Rockford Weather Indicators Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Annual
Average Wind Speed10.510.611.611.810.49.38.17.78.49.510.610.49.9
Clear Days7.07.06.06.08.07.09.09.010.010.06.07.093.0
Partly Cloudy Days7.06.08.08.09.011.012.011.09.07.06.06.098.0
Cloudy Days17.015.017.016.014.012.010.011.012.013.018.019.0174
Percent of Possible Sunshine0000000000000
Avg. Relative Humidity57.576.574.071.568.568.071.575.075.573.071.575.578.5

Weather information for other cities in Illinois

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