Iron Mountain, MI
Climate overview — based on NOAA 1991-2020 normals from IRON MTN FORD AP, MI US.
Year-round temperatures (°F)
Climate summary
Iron Mountain has an annual average temperature of 41.8°F with about 20.7 inches of precipitation per year. The warmest month is July (average high 80.1°F), and the coldest is January (average low 5.8°F). June is typically the wettest month (2.99 in) and January the driest (0.47 in).
Best time to visit Iron Mountain
Full guide →Climate change signal
All-time records →155 of 366 (42.3%) of Iron Mountain's all-time daily heat records have been set since 2015. If records were spread evenly across the station's history, only about 5% would fall in any given decade.
| 1990s | 33 | |
| 2000s | 123 | |
| 2010s | 111 | |
| 2020s | 99 |
Bars: number of all-time daily heat records still standing that were set in each decade.
Monthly averages
| Month | Avg High | Avg Low | Avg Temp | Precipitation | Snow | Rainy days |
|---|---|---|---|---|---|---|
| January | 23.5°F | 5.8°F | 14.7°F | 0.47 in | — | 6 |
| February | 27.4°F | 6.6°F | 17.0°F | 0.51 in | — | 5 |
| March | 38.3°F | 16.8°F | 27.6°F | 0.87 in | — | 6 |
| April | 52.1°F | 27.4°F | 39.8°F | 1.59 in | — | 9 |
| May | 66.3°F | 39.5°F | 52.9°F | 2.20 in | — | 11 |
| June | 75.9°F | 49.8°F | 62.8°F | 2.99 in | — | 12 |
| July | 80.1°F | 54.4°F | 67.3°F | 2.74 in | — | 11 |
| August | 77.7°F | 52.9°F | 65.3°F | 2.44 in | — | 11 |
| September | 69.5°F | 45.2°F | 57.4°F | 2.94 in | — | 12 |
| October | 55.1°F | 34.3°F | 44.7°F | 2.20 in | — | 10 |
| November | 40.1°F | 23.7°F | 31.9°F | 1.15 in | — | 7 |
| December | 28.5°F | 12.7°F | 20.6°F | 0.65 in | — | 6 |
Climate twins of Iron Mountain
Why these? →The most climatically similar US cities at least 140 miles away (by monthly temperature + precipitation pattern).