Olathe Average Rainfall by Month

This page shows the average precipitation in each month of the year in Olathe, Kansas. It is based on NOAA data for the years 1991–2020.
What's the Rainiest Month in Olathe?
In Olathe, June has the greatest precipitation of any month. On average, Olathe gets 5.4 inches of precipitation in June.
However, May is the month with the greatest chance of precipitation. 42.4% of days in May will have at least some rain.
What's the Driest Month in Olathe?
In Olathe, January has the least precipitation of any month. On average, Olathe gets 1.04 inches of precipitation in January.
January is also the month where rain is least common. 17.6% of days in January will have measurable rain.
Month Precipitation % Chance
January 1.04 in 17.6
February 1.58 in 22.2
March 2.41 in 30.3
April 3.68 in 36.7
May 5.08 in 42.4
June 5.36 in 36.4
July 3.93 in 29.9
August 4.36 in 30.4
September 3.80 in 29.9
October 3.52 in 28.8
November 1.65 in 20.5
December 1.47 in 18.2
Year 37.73 in 28.6
Weather Station Details
Years Station Coordinates
1948–2024 Olathe Johnson County Airport location
1893–1947 Olathe 3E location
© H Brothers Inc, 2021–2024
Contact us | Privacy policy