Boyne City, Michigan has a Humid Continental Mild Summer, Wet All Year climate (Köppen classification: Dfb). Average annual temperatures range from 35.2 °F (low) to 55.3 °F (high). Annual precipitation averages 34.7 Inches. Boyne 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 | 14.5 °F | 28.1 °F | 2.39 in. |
| February | 12.9 °F | 30.3 °F | 1.56 in. |
| March | 19.3 °F | 40.0 °F | 1.79 in. |
| April | 31.0 °F | 53.4 °F | 2.86 in. |
| May | 42.0 °F | 67.1 °F | 3.06 in. |
| June | 51.8 °F | 76.4 °F | 3.1 in. |
| July | 56.2 °F | 80.3 °F | 2.82 in. |
| August | 55.3 °F | 79.3 °F | 3.33 in. |
| September | 48.3 °F | 71.9 °F | 3.72 in. |
| October | 38.6 °F | 58.2 °F | 4.34 in. |
| November | 30.3 °F | 44.6 °F | 3.09 in. |
| December | 21.9 °F | 33.5 °F | 2.68 in. |
| Annual | 35.2 °F | 55.3 °F | 34.74 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 5a : -20°F to -15°F |
| Current Drought Conditions | Normal |
| Köppen Climate Classification | Dfb - Humid Continental Mild Summer, Wet All Year |