San Angelo Average Rainfall by Month

This page shows the average precipitation (including snowfall) in each month of the year in San Angelo, Texas. It is based on NOAA data for the years 1991–2020.
What's the Rainiest Month in San Angelo?
In San Angelo, May has the greatest precipitation of any month. On average, San Angelo gets 3.0 inches of precipitation in May.
May is also the month where rain is most common. 21.6% of days in May will have at least some rain.
What's the Driest Month in San Angelo?
In San Angelo, January has the least precipitation of any month. On average, San Angelo gets 0.92 inches of precipitation in January.
November is the month with the lowest chance of precipitation. 13.4% of days in November will have measurable rain or snow.
Month Precipitation % Chance
January 0.92 in 14.0
February 1.20 in 17.2
March 1.48 in 15.8
April 1.47 in 14.8
May 3.05 in 21.6
June 2.31 in 19.3
July 1.10 in 14.2
August 2.42 in 19.0
September 2.51 in 17.1
October 2.42 in 18.7
November 1.16 in 13.4
December 0.89 in 13.4
Year 20.92 in 16.6
Weather Station Details
Years Station Coordinates
1907–2024 San Angelo location