Salmon Average Rainfall by Month

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

Average temperature by month

What's the Rainiest Month in Salmon?

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

June is also the month where rain is most common. 31.9% of days in June will have at least some rain.

What's the Driest Month in Salmon?

In Salmon, February has the least precipitation of any month. On average, Salmon gets 0.33 inches of precipitation in February.

September is the month with the lowest chance of precipitation. 15.3% of days in September will have measurable rain or snow.

Month	Precipitation	% Chance
January	0.60 in	19.2
February	0.33 in	15.6
March	0.48 in	19.6
April	0.77 in	24.1
May	1.28 in	31.7
June	1.39 in	31.9
July	0.83 in	18.8
August	0.58 in	16.6
September	0.69 in	15.3
October	0.73 in	18.9
November	0.64 in	21.8
December	0.69 in	23.2
Year	9.29 in	22.1

Weather Station Details

Years	Station	Coordinates
1967–2024	Salmon KSRA	location