Brownsville Average Rainfall by Month

This page shows the average precipitation in each month of the year in Brownsville, Texas. It is based on NOAA data for the years 1991–2020.
What's the Rainiest Month in Brownsville?
In Brownsville, September has the greatest precipitation of any month. On average, Brownsville gets 5.7 inches of precipitation in September.
September is also the month where rain is most common. 37.0% of days in September will have at least some rain.
What's the Driest Month in Brownsville?
In Brownsville, February has the least precipitation of any month. On average, Brownsville gets 1.03 inches of precipitation in February.
April is the month with the lowest chance of precipitation. 15.1% of days in April will have measurable rain.
Month Precipitation % Chance
January 1.07 in 22.6
February 1.03 in 18.6
March 1.44 in 17.0
April 1.47 in 15.1
May 2.22 in 15.4
June 2.86 in 19.3
July 1.98 in 15.6
August 2.21 in 19.9
September 5.73 in 37.0
October 3.82 in 24.6
November 1.75 in 23.3
December 1.20 in 24.3
Year 26.79 in 21.1
Weather Station Details
Years Station Coordinates
1898–2024 Brownsville location
© H Brothers Inc, 2021–2024
Contact us | Privacy policy