Columbia Average Rainfall by Month

This page shows the average precipitation (including snowfall) in each month of the year in Columbia, Tennessee. It is based on NOAA data for the years 1991–2020.
What's the Rainiest Month in Columbia?
In Columbia, March has the greatest precipitation of any month. On average, Columbia gets 5.4 inches of precipitation in March.
March is also the month where rain is most common. 40.5% of days in March will have at least some rain or snow.
What's the Driest Month in Columbia?
In Columbia, October has the least precipitation of any month. On average, Columbia gets 3.77 inches of precipitation in October.
October is also the month where rain is least common. 27.1% of days in October will have measurable rain.
Month Precipitation % Chance
January 4.49 in 36.4
February 4.99 in 39.3
March 5.44 in 40.5
April 5.10 in 36.5
May 5.20 in 37.4
June 4.87 in 35.5
July 4.76 in 33.3
August 4.00 in 30.7
September 4.37 in 27.7
October 3.77 in 27.1
November 3.84 in 31.8
December 5.19 in 37.4
Year 55.92 in 34.4
Weather Station Details
Years Station Coordinates
1949–2024 Columbia 3 WNW location
1890–1948 Ashwood location