Brookings Average Rainfall by Month

This page shows the average precipitation (including snowfall) in each month of the year in Brookings, South Dakota. It is based on NOAA data for the years 1991–2020.
What's the Rainiest Month in Brookings?
In Brookings, June has the greatest precipitation of any month. On average, Brookings gets 4.3 inches of precipitation in June.
However, May is the month with the greatest chance of precipitation. 40.4% of days in May will have at least some rain or snow.
What's the Driest Month in Brookings?
In Brookings, February has the least precipitation of any month. On average, Brookings gets 0.42 inches of precipitation in February.
November is the month with the lowest chance of precipitation. 16.0% of days in November will have measurable rain or snow.
Month Precipitation % Chance
January 0.42 in 19.3
February 0.42 in 19.6
March 1.02 in 21.7
April 2.15 in 31.8
May 3.44 in 40.4
June 4.29 in 40.1
July 3.60 in 32.2
August 3.25 in 29.5
September 3.10 in 27.9
October 1.96 in 24.8
November 0.80 in 16.0
December 0.59 in 19.1
Year 25.03 in 27.0
Weather Station Details
Years Station Coordinates
1893–2024 Brookings 2 NE location