Morenci, Michigan has a Humid Continental Mild Summer, Wet All Year climate (Köppen classification: Dfb). Average annual temperatures range from 4.1 °C (low) to 15.3 °C (high). Annual precipitation averages 947.9 Millimeters. Morenci is located in USDA Plant Hardiness Zone 6a. The growing season typically runs from the last frost around Apr. 21 - Apr. 30 through the first frost around Oct. 11 - Oct. 20.
| Month | Avg. Low | Avg. High | Avg. Precip |
|---|---|---|---|
| January | -8.4 °C | 0.1 °C | 59.94 mm |
| February | -7.7 °C | 1.8 °C | 55.12 mm |
| March | -3.2 °C | 7.6 °C | 67.31 mm |
| April | 2.7 °C | 15.2 °C | 87.88 mm |
| May | 9.1 °C | 21.6 °C | 103.89 mm |
| June | 14.7 °C | 27 °C | 98.81 mm |
| July | 16.3 °C | 29.1 °C | 91.44 mm |
| August | 15.3 °C | 27.9 °C | 93.22 mm |
| September | 10.9 °C | 24.5 °C | 80.26 mm |
| October | 4.9 °C | 17.2 °C | 73.91 mm |
| November | -0.6 °C | 9.3 °C | 75.95 mm |
| December | -5.1 °C | 2.8 °C | 60.2 mm |
| Annual | 4.1 °C | 15.3 °C | 947.93 mm |
| Average First Frost Date | Oct. 11 - Oct. 20 |
| Average Last Frost Date | Apr. 21 - Apr. 30 |
| Average Days With Frost | 125-150 Days |
| Plant Hardiness Zone | Zone 6a : -23.3°C to -20.6°C |
| Plant Hardiness Zone - 2012 | Zone 6a : -23.3°C to -20.6°C |
| Current Drought Conditions | Normal |
| Köppen Climate Classification | Dfb - Humid Continental Mild Summer, Wet All Year |