Oakland Average Rainfall by Month

This page shows the average precipitation in each month of the year in Oakland, California. It is based on NOAA data for the years 1991–2020.
What's the Rainiest Month in Oakland?
In Oakland, February has the greatest precipitation of any month. On average, Oakland gets 3.1 inches of precipitation in February.
February is also the month where rain is most common. 36.0% of days in February will have at least some rain.
What's the Driest Month in Oakland?
In Oakland, July has the least precipitation of any month. On average, Oakland gets 0.006 inches of precipitation in July.
July is also the month where rain is least common. Only 1.4% of days in July will have measurable rain.
Month Precipitation % Chance
January 2.66 in 33.8
February 3.07 in 36.0
March 2.61 in 33.5
April 1.49 in 20.6
May 0.49 in 9.9
June 0.16 in 3.2
July 0.01 in 1.4
August 0.01 in 1.5
September 0.12 in 4.9
October 0.92 in 15.6
November 1.76 in 27.8
December 3.85 in 36.0
Year 17.14 in 18.6
Weather Station Details
Years Station Coordinates
1948–2024 Oakland Metro International Airport location
1894–1947 Oakland location
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