St. Louis

The tables below display average monthly climate and weather indicators in St. Louis Missouri.

Temperature by: Fahrenheit / Centigrade

St. Louis Temperature Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Annual
Avg. Temperature29.333.945.156.766.175.479.877.670.258.446.233.956.1
Avg. Max Temperature37.742.654.666.976.185.289.387.379.968.554.741.765.4
Avg. Min Temperature20.825.135.546.456.065.770.467.960.548.337.726.046.7
Days with Max Temp of 90 F or Higher0.00.00.0< 0.51.08.015.012.04.0< 0.50.00.040.0
Days with Min Temp Below Freezing26.020.013.03.0< 0.50.00.00.00.01.011.022.097.0
 
St. Louis Heating and Cooling Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Annual
Heating Degree Days11078716172661110.00.00.021.02375649644758
Cooling Degree Days0.00.00.017.014531245939117733.00.00.01534
 
St. Louis Precipitation Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Annual
Precipitation (inches)1.82.13.63.54.03.73.92.93.12.73.33.037.5
Days with Precipitation 0.01 inch or More9.08.011.011.011.09.09.08.08.08.010.09.0111
Monthly Snowfall (inches)5.44.44.00.50.0< 0.05< 0.050.00.0< 0.051.43.819.5
 
Other St. Louis Weather Indicators Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Annual
Average Wind Speed10.610.811.711.39.48.88.07.68.28.910.210.39.7
Clear Days7.07.06.07.07.07.09.010.011.012.09.07.0101
Partly Cloudy Days7.06.08.08.09.011.011.011.08.07.07.07.0101
Cloudy Days17.015.016.015.014.012.010.010.010.011.015.017.0164
Percent of Possible Sunshine50.052.054.056.059.066.068.065.063.060.046.043.057.0
Avg. Relative Humidity59.574.072.068.068.569.570.572.072.571.069.572.575.5

Weather information for other cities in Missouri

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