Mears, Michigan has a Humid Continental Mild Summer, Wet All Year climate (Köppen classification: Dfb). Average annual temperatures range from 37.6 °F (low) to 54.8 °F (high). Annual precipitation averages 37.7 Inches. Mears is located in USDA Plant Hardiness Zone 6a. 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 | 17.0 °F | 29.1 °F | 2.83 in. |
| February | 17.5 °F | 31.6 °F | 2.26 in. |
| March | 23.3 °F | 41.1 °F | 2.19 in. |
| April | 33.9 °F | 52.9 °F | 3.54 in. |
| May | 44.8 °F | 65.0 °F | 3.68 in. |
| June | 54.2 °F | 74.6 °F | 3.42 in. |
| July | 58.7 °F | 78.3 °F | 3.49 in. |
| August | 57.6 °F | 77.0 °F | 3.47 in. |
| September | 50.2 °F | 70.7 °F | 3.24 in. |
| October | 40.1 °F | 57.7 °F | 3.99 in. |
| November | 31.2 °F | 44.9 °F | 3.11 in. |
| December | 23.0 °F | 34.1 °F | 2.52 in. |
| Annual | 37.6 °F | 54.8 °F | 37.74 in. |
| Average First Frost Date | Oct. 1 - Oct. 10 |
| Average Last Frost Date | May 11 - May 20 |
| Average Days With Frost | 125-150 Days |
| Plant Hardiness Zone | Zone 6a : -10°F to -5°F |
| Plant Hardiness Zone - 2012 | Zone 6a : -10°F to -5°F |
| Current Drought Conditions | Normal |
| Köppen Climate Classification | Dfb - Humid Continental Mild Summer, Wet All Year |