Salem Average Rainfall by Month

This page shows the average precipitation in each month of the year in Salem, Oregon. It is based on NOAA data for the years 1991–2020.
What's the Rainiest Month in Salem?
In Salem, January has the greatest precipitation of any month. On average, Salem gets 6.1 inches of precipitation in January.
However, November is the month with the greatest chance of precipitation. 58.9% of days in November will have at least some rain.
What's the Driest Month in Salem?
In Salem, July has the least precipitation of any month. On average, Salem gets 0.25 inches of precipitation in July.
July is also the month where rain is least common. Only 7.3% of days in July will have measurable rain.
Month Precipitation % Chance
January 6.07 in 58.8
February 4.53 in 55.9
March 4.34 in 56.3
April 3.12 in 52.5
May 2.25 in 37.5
June 1.25 in 26.7
July 0.25 in 7.3
August 0.39 in 10.2
September 1.46 in 21.2
October 3.47 in 40.3
November 5.94 in 58.9
December 6.96 in 61.1
Year 40.03 in 40.5
Weather Station Details
Years Station Coordinates
1893–2024 Salem McNary Field location
© H Brothers Inc, 2021–2024
Contact us | Privacy policy