Nunica, Michigan has a Humid Continental Mild Summer, Wet All Year climate (Köppen classification: Dfb). Average annual temperatures range from 4 °C (low) to 13.5 °C (high). Annual precipitation averages 956.1 Millimeters. 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 | -7.9 °C | -0.9 °C | 71.37 mm |
| February | -7.7 °C | 0.4 °C | 52.07 mm |
| March | -3.8 °C | 5.9 °C | 56.9 mm |
| April | 2.2 °C | 12.8 °C | 93.98 mm |
| May | 8.3 °C | 19.3 °C | 99.31 mm |
| June | 13.8 °C | 24.6 °C | 92.2 mm |
| July | 15.9 °C | 26.7 °C | 82.04 mm |
| August | 15.2 °C | 26.1 °C | 84.84 mm |
| September | 11 °C | 22.6 °C | 82.3 mm |
| October | 5.1 °C | 15.2 °C | 96.01 mm |
| November | 0.1 °C | 7.9 °C | 79.25 mm |
| December | -4.3 °C | 1.8 °C | 65.79 mm |
| Annual | 4 °C | 13.5 °C | 956.06 mm |
| 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 : -23.3°C to -20.6°C |
| Plant Hardiness Zone - 2012 | Zone 6b : -20.6°C to -17.8°C |
| Current Drought Conditions | Normal |
| Köppen Climate Classification | Dfb - Humid Continental Mild Summer, Wet All Year |