Bozeman Average Rainfall by Month

This page shows the average precipitation (including snowfall) in each month of the year in Bozeman, Montana. It is based on NOAA data for the years 1991–2020.
What's the Rainiest Month in Bozeman?
In Bozeman, June has the greatest precipitation of any month. On average, Bozeman gets 3.3 inches of precipitation in June.
June is also the month where rain is most common. 50.9% of days in June will have at least some rain or snow.
What's the Driest Month in Bozeman?
In Bozeman, February has the least precipitation of any month. On average, Bozeman gets 0.82 inches of precipitation in February.
September is the month with the lowest chance of precipitation. 30.0% of days in September will have measurable rain or snow.
Month Precipitation % Chance
January 0.87 in 34.5
February 0.82 in 33.3
March 1.38 in 38.1
April 2.50 in 45.4
May 2.93 in 49.8
June 3.27 in 50.9
July 1.29 in 32.6
August 1.32 in 32.5
September 1.45 in 30.0
October 1.83 in 35.5
November 1.24 in 34.0
December 1.04 in 35.6
Year 19.82 in 37.7
Weather Station Details
Years Station Coordinates
1892–2024 Bozeman Montana State University location