Iron Mountain, MI Weather & Climate Normals
Iron Mountain's real weather, in one number
Iron Mountain, MI scores 42/100 on this site's reading of NOAA's own 30-year normals: strongly seasonal. Comfortable weather is limited to a shorter window; summers, winters, or precipitation swing wide. 4 of the year's 12 months average between 55 and 75°F, the range this site counts as mild.
Iron Mountain's hottest and coldest months
Iron Mountain's hottest month is Jul, averaging 67°F; its coldest is Jan, averaging 15°F, a 52.6°F swing across the year, one of the widest gaps in this dataset.
Iron Mountain's weather across the year
| Month | Avg high | Avg low | Precip |
|---|---|---|---|
| Jan | 24°F | 6°F | 0.47in |
| Feb | 27°F | 7°F | 0.51in |
| Mar | 38°F | 17°F | 0.87in |
| Apr | 52°F | 27°F | 1.59in |
| May | 66°F | 40°F | 2.2in |
| Jun | 76°F | 50°F | 2.99in |
| Jul | 80°F | 54°F | 2.74in |
| Aug | 78°F | 53°F | 2.44in |
| Sep | 70°F | 45°F | 2.94in |
| Oct | 55°F | 34°F | 2.2in |
| Nov | 40°F | 24°F | 1.15in |
| Dec | 29°F | 13°F | 0.65in |
Jun, Jul, Aug, and Sep are the best time to see Iron Mountain at its mildest; the rest of the year, plan around Jan's cold.
Rain and snow in Iron Mountain
Over a typical year, Iron Mountain sees about 20.75in of precipitation a year across roughly 104 days with measurable rain or snow. That station has no snowfall reading, so none is shown rather than assumed.
Where Iron Mountain ranks
Iron Mountain ranks 4288 of 4876 US cities in this dataset for comfort score, and 133 of 153 within MI. About 7,524 people live there.
If you need tomorrow's forecast, not the 30-year average
Everything above is a 30-year average from Iron Mtn Ford Ap, MI US, 2.7 miles from Iron Mountain, not a prediction for any specific day.
More on how this is worked out
Why some cities show no snow or rain figure · How the comfort score is calculated