Lee's Summit Average Rainfall by Month

This page shows the average precipitation in each month of the year in Lee's Summit, Missouri. It is based on NOAA data for the years 1991–2020.
What's the Rainiest Month in Lee's Summit?
In Lee's Summit, May has the greatest precipitation of any month. On average, Lee's Summit gets 5.7 inches of precipitation in May.
May is also the month where rain is most common. 40.1% of days in May will have at least some rain.
What's the Driest Month in Lee's Summit?
In Lee's Summit, January has the least precipitation of any month. On average, Lee's Summit gets 1.09 inches of precipitation in January.
January is also the month where rain is least common. 18.3% of days in January will have measurable rain.
Month Precipitation % Chance
January 1.09 in 18.3
February 1.48 in 19.8
March 2.39 in 26.5
April 4.34 in 36.8
May 5.69 in 40.1
June 5.45 in 35.8
July 4.65 in 31.9
August 4.48 in 30.0
September 3.97 in 30.0
October 3.32 in 28.8
November 2.22 in 22.4
December 1.51 in 20.6
Year 40.33 in 28.4
Weather Station Details
Years Station Coordinates
2003–2024 Lee's Summit Municipal Airport location
1962–2002 Lee's Summit Reed WR location
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