Iron River Average Rainfall by Month

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

Average temperature by month

What's the Rainiest Month in Iron River?

In Iron River, July has the greatest precipitation of any month. On average, Iron River gets 4.2 inches of precipitation in July.

However, September is the month with the greatest chance of precipitation. 43.5% of days in September will have at least some rain.

What's the Driest Month in Iron River?

In Iron River, February has the least precipitation of any month. On average, Iron River gets 0.97 inches of precipitation in February.

February is also the month where rain is least common. 25.9% of days in February will have measurable rain or snow.

Month	Precipitation	% Chance
January	1.11 in	32.0
February	0.97 in	25.9
March	1.37 in	26.5
April	2.52 in	35.5
May	3.17 in	38.7
June	4.00 in	40.3
July	4.15 in	39.9
August	3.10 in	35.7
September	3.53 in	43.5
October	3.31 in	42.7
November	1.79 in	36.4
December	1.44 in	34.4
Year	29.98 in	36.1

Weather Station Details

Years	Station	Coordinates
1922–2024	Stambaugh 2SSE	location
1896–1922	Iron River	location