Davis Average Rainfall by Month

This page shows the average precipitation in each month of the year in Davis, California. It is based on NOAA data for the years 1991–2020.
What's the Rainiest Month in Davis?
In Davis, January has the greatest precipitation of any month. On average, Davis gets 4.0 inches of precipitation in January.
January is also the month where rain is most common. 39.8% of days in January will have at least some rain.
What's the Driest Month in Davis?
In Davis, July has the least precipitation of any month. On average, Davis gets 0.005 inches of precipitation in July.
July is also the month where rain is least common. Only 0.32% of days in July will have measurable rain.
Month Precipitation % Chance
January 4.01 in 39.8
February 3.88 in 36.3
March 2.64 in 27.5
April 1.16 in 16.8
May 0.67 in 10.3
June 0.24 in 4.2
July 0.01 in 0.3
August 0.04 in 0.4
September 0.10 in 2.6
October 0.75 in 9.8
November 1.73 in 22.9
December 3.75 in 36.3
Year 18.78 in 17.1
Weather Station Details
Years Station Coordinates
1893–2024 Davis 2 WSW Experimental Farm location
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