Iron Mountain, MI in zip code 49801 has a humid continental climate with all four seasons. Summers are warm and humid with temperatures averaging around 75°F (24°C). Winters are cold and snowy with temperatures ranging from 20 - 30°F (-6 - -1°C). Spring and fall are milder, but rainfall is common in all seasons. Iron Mountain sees an average of 35 inches (889 mm) of precipitation each year, mostly from rain and snow, although it can be subject to occasional thunderstorms and hail due to its location near Lake Michigan.
Iron Mountain (zip 49801), Michigan gets 28 inches of rain, on average, per year. The US average is 38 inches of rain per year.
Iron Mountain (zip 49801) averages 58 inches of snow per year. The US average is 28 inches of snow per year.
On average, there are 187 sunny days per year in Iron Mountain (zip 49801). The US average is 205 sunny days.
Iron Mountain (zip 49801) gets some kind of precipitation, on average, 117 days per year. Precipitation is rain, snow, sleet, or hail that falls to the ground. In order for precipitation to be counted you have to get at least .01 inches on the ground to measure.
Weather Highlights
Summer High: the July high is around 79 degrees
Winter Low: the January low is 4
Rain: averages 28 inches of rain a year
Snow: averages 58 inches of snow a year