Miles City Average Rainfall by Month

This page shows the average precipitation in each month of the year in Miles City, Montana. It is based on NOAA data for the years 1991–2020.
What's the Rainiest Month in Miles City?
In Miles City, May has the greatest precipitation of any month. On average, Miles City gets 2.7 inches of precipitation in May.
May is also the month where rain is most common. 38.7% of days in May will have at least some rain.
What's the Driest Month in Miles City?
In Miles City, February has the least precipitation of any month. On average, Miles City gets 0.26 inches of precipitation in February.
January is the month with the lowest chance of precipitation. 16.6% of days in January will have measurable rain.
Month Precipitation % Chance
January 0.27 in 16.6
February 0.26 in 18.1
March 0.55 in 20.4
April 1.54 in 29.3
May 2.73 in 38.7
June 2.51 in 36.9
July 1.51 in 25.9
August 0.91 in 21.0
September 1.06 in 21.7
October 0.97 in 24.5
November 0.33 in 17.9
December 0.21 in 13.9
Year 12.85 in 23.7
Weather Station Details
Years Station Coordinates
1938–2024 Miles City Airport location
1893–1937 Miles City location