Hancock, Michigan has a Humid Continental Mild Summer, Wet All Year climate (Köppen classification: Dfb). Average annual temperatures range from 31.7 °F (low) to 51.3 °F (high). Annual precipitation averages 34.7 Inches. Hancock 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 | 9.1 °F | 24.0 °F | 3.66 in. |
| February | 7.9 °F | 26.7 °F | 1.61 in. |
| March | 15.7 °F | 36.6 °F | 1.64 in. |
| April | 27.5 °F | 47.7 °F | 2.55 in. |
| May | 38.6 °F | 62.3 °F | 3.3 in. |
| June | 48.1 °F | 72.4 °F | 2.95 in. |
| July | 54.6 °F | 77.5 °F | 2.91 in. |
| August | 53.8 °F | 76.4 °F | 2.7 in. |
| September | 47.2 °F | 68.5 °F | 3.41 in. |
| October | 36.0 °F | 54.4 °F | 3.56 in. |
| November | 26.3 °F | 40.1 °F | 2.7 in. |
| December | 15.9 °F | 29.5 °F | 3.74 in. |
| Annual | 31.7 °F | 51.3 °F | 34.73 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 5b : -15°F to -10°F |
| Current Drought Conditions | Normal |
| Köppen Climate Classification | Dfb - Humid Continental Mild Summer, Wet All Year |