Copper City, Michigan has a Humid Continental Mild Summer, Wet All Year climate (Köppen classification: Dfb). Average annual temperatures range from 32.3 °F (low) to 49.8 °F (high). Annual precipitation averages 32.3 Inches. Copper City is located in USDA Plant Hardiness Zone 5b. The growing season typically runs from the last frost around May 11 - May 20 through the first frost around Oct. 1 - Oct. 10.
| Month | Avg. Low | Avg. High | Avg. Precip |
|---|---|---|---|
| January | 9.0 °F | 22.9 °F | 2.69 in. |
| February | 9.2 °F | 25.6 °F | 1.6 in. |
| March | 15.9 °F | 35.5 °F | 1.67 in. |
| April | 28.1 °F | 45.8 °F | 2.31 in. |
| May | 39.5 °F | 59.9 °F | 2.92 in. |
| June | 49.0 °F | 70.8 °F | 2.93 in. |
| July | 55.1 °F | 75.2 °F | 3.13 in. |
| August | 54.3 °F | 74.3 °F | 2.75 in. |
| September | 47.5 °F | 66.8 °F | 3.35 in. |
| October | 36.7 °F | 52.9 °F | 3.47 in. |
| November | 26.3 °F | 38.8 °F | 2.65 in. |
| December | 16.4 °F | 28.5 °F | 2.84 in. |
| Annual | 32.3 °F | 49.8 °F | 32.31 in. |
| Average First Frost Date | Oct. 1 - Oct. 10 |
| Average Last Frost Date | May 11 - May 20 |
| Average Days With Frost | 150-180 Days |
| Plant Hardiness Zone | Zone 5b : -15°F to -10°F |
| Plant Hardiness Zone - 2012 | Zone 5b : -15°F to -10°F |
| Current Drought Conditions | Normal |
| Köppen Climate Classification | Dfb - Humid Continental Mild Summer, Wet All Year |