Danbury Average Rainfall by Month

This page shows the average precipitation in each month of the year in Danbury, Connecticut. It is based on NOAA data for the years 1991–2020.
What's the Rainiest Month in Danbury?
In Danbury, September has the greatest precipitation of any month. On average, Danbury gets 4.8 inches of precipitation in September.
However, May is the month with the greatest chance of precipitation. 44.2% of days in May will have at least some rain.
What's the Driest Month in Danbury?
In Danbury, February has the least precipitation of any month. On average, Danbury gets 2.73 inches of precipitation in February.
November is the month with the lowest chance of precipitation. 35.4% of days in November will have measurable rain.
Month Precipitation % Chance
January 3.41 in 36.8
February 2.73 in 35.9
March 4.03 in 37.6
April 3.81 in 40.1
May 3.75 in 44.2
June 4.37 in 41.0
July 4.65 in 39.1
August 4.42 in 39.2
September 4.78 in 42.4
October 4.44 in 38.4
November 3.88 in 35.4
December 4.27 in 38.8
Year 48.36 in 39.1
Weather Station Details
Years Station Coordinates
2000–2024 Danbury Municipal Airport location
1937–1999 Danbury location
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