Gunnison Average Rainfall by Month

This page shows the average precipitation (including snowfall) in each month of the year in Gunnison, Colorado. It is based on NOAA data for the years 1991–2020.

Average temperature by month

What's the Rainiest Month in Gunnison?

In Gunnison, August has the greatest precipitation of any month. On average, Gunnison gets 1.4 inches of precipitation in August.

August is also the month where rain is most common. 36.1% of days in August will have at least some rain.

What's the Driest Month in Gunnison?

In Gunnison, March has the least precipitation of any month. On average, Gunnison gets 0.42 inches of precipitation in March.

March is also the month where rain is least common. 15.3% of days in March will have measurable rain or snow.

Month	Precipitation	% Chance
January	0.84 in	25.0
February	0.66 in	24.1
March	0.42 in	15.3
April	0.67 in	18.1
May	0.83 in	20.3
June	0.59 in	17.4
July	1.30 in	32.7
August	1.43 in	36.1
September	1.17 in	31.2
October	0.72 in	19.7
November	0.64 in	18.7
December	0.96 in	21.3
Year	11.21 in	25.5

Weather Station Details

Years	Station	Coordinates
1893–2024	Gunnison 3SW	location