Nunica, Michigan has a Humid Continental Mild Summer, Wet All Year climate (Köppen classification: Dfb). Average annual temperatures range from 39.2 °F (low) to 56.4 °F (high). Annual precipitation averages 37.6 Inches. Nunica is located in USDA Plant Hardiness Zone 6a. The growing season typically runs from the last frost around May 1 - May 10 through the first frost around Oct. 11 - Oct. 20.
| Month | Avg. Low | Avg. High | Avg. Precip |
|---|---|---|---|
| January | 17.8 °F | 30.3 °F | 2.81 in. |
| February | 18.2 °F | 32.7 °F | 2.05 in. |
| March | 25.2 °F | 42.6 °F | 2.24 in. |
| April | 35.9 °F | 55.0 °F | 3.7 in. |
| May | 47.0 °F | 66.7 °F | 3.91 in. |
| June | 56.8 °F | 76.3 °F | 3.63 in. |
| July | 60.6 °F | 80.1 °F | 3.23 in. |
| August | 59.4 °F | 78.9 °F | 3.34 in. |
| September | 51.8 °F | 72.7 °F | 3.24 in. |
| October | 41.2 °F | 59.4 °F | 3.78 in. |
| November | 32.1 °F | 46.2 °F | 3.12 in. |
| December | 24.3 °F | 35.3 °F | 2.59 in. |
| Annual | 39.2 °F | 56.4 °F | 37.64 in. |
| Average First Frost Date | Oct. 11 - Oct. 20 |
| Average Last Frost Date | May 1 - May 10 |
| Average Days With Frost | 125-150 Days |
| Plant Hardiness Zone | Zone 6a : -10°F to -5°F |
| Plant Hardiness Zone - 2012 | Zone 6b : -5°F to 0°F |
| Current Drought Conditions | Normal |
| Köppen Climate Classification | Dfb - Humid Continental Mild Summer, Wet All Year |