North Branch, Michigan has a Humid Continental Mild Summer, Wet All Year climate (Köppen classification: Dfb). Average annual temperatures range from 36.8 °F (low) to 56.7 °F (high). Annual precipitation averages 32.6 Inches. North Branch 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. 1 - Oct. 10.
| Month | Avg. Low | Avg. High | Avg. Precip |
|---|---|---|---|
| January | 14.9 °F | 29.7 °F | 2.2 in. |
| February | 14.7 °F | 32.5 °F | 1.75 in. |
| March | 22.9 °F | 42.2 °F | 1.89 in. |
| April | 33.5 °F | 55.5 °F | 3.21 in. |
| May | 44.7 °F | 67.6 °F | 3.49 in. |
| June | 54.3 °F | 77.7 °F | 3.23 in. |
| July | 58.4 °F | 81.5 °F | 3.47 in. |
| August | 57.3 °F | 79.3 °F | 3.04 in. |
| September | 49.7 °F | 73.3 °F | 2.92 in. |
| October | 39.8 °F | 60.2 °F | 2.86 in. |
| November | 29.9 °F | 46.5 °F | 2.47 in. |
| December | 21.6 °F | 34.9 °F | 2.02 in. |
| Annual | 36.8 °F | 56.7 °F | 32.55 in. |
| Average First Frost Date | Oct. 1 - Oct. 10 |
| 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 6a : -10°F to -5°F |
| Current Drought Conditions | Normal |
| Köppen Climate Classification | Dfb - Humid Continental Mild Summer, Wet All Year |