Michigamme, Michigan has a Humid Continental Mild Summer, Wet All Year climate (Köppen classification: Dfb). Average annual temperatures range from 27.5 °F (low) to 50.6 °F (high). Annual precipitation averages 31.2 Inches. Michigamme is located in USDA Plant Hardiness Zone 4a. The growing season typically runs from the last frost around May 21 - May 31 through the first frost around Sep.11 - Sep. 20.
| Month | Avg. Low | Avg. High | Avg. Precip |
|---|---|---|---|
| January | 2.6 °F | 21.4 °F | 1.54 in. |
| February | 2.2 °F | 25.4 °F | 1.23 in. |
| March | 10.2 °F | 36.8 °F | 1.6 in. |
| April | 23.8 °F | 48.8 °F | 2.55 in. |
| May | 36.8 °F | 63.9 °F | 2.99 in. |
| June | 46.7 °F | 73.3 °F | 3.42 in. |
| July | 51.0 °F | 77.2 °F | 3.79 in. |
| August | 49.4 °F | 75.6 °F | 3.2 in. |
| September | 42.8 °F | 67.5 °F | 3.5 in. |
| October | 32.1 °F | 52.8 °F | 3.63 in. |
| November | 21.7 °F | 37.9 °F | 2.03 in. |
| December | 10.3 °F | 26.5 °F | 1.74 in. |
| Annual | 27.5 °F | 50.6 °F | 31.22 in. |
| Average First Frost Date | Sep.11 - Sep. 20 |
| Average Last Frost Date | May 21 - May 31 |
| Average Days With Frost | Over 180 Days |
| Plant Hardiness Zone | Zone 4a : -30°F to -25°F |
| Plant Hardiness Zone - 2012 | Zone 4a : -30°F to -25°F |
| Current Drought Conditions | Normal |
| Köppen Climate Classification | Dfb - Humid Continental Mild Summer, Wet All Year |