Hopkins, Michigan has a Humid Continental Mild Summer, Wet All Year climate (Köppen classification: Dfb). Average annual temperatures range from 38.7 °F (low) to 57.6 °F (high). Annual precipitation averages 42.2 Inches. Hopkins 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 | 17.9 °F | 31.1 °F | 3.6 in. |
| February | 18.0 °F | 33.4 °F | 2.34 in. |
| March | 25.2 °F | 44.0 °F | 2.54 in. |
| April | 35.6 °F | 57.3 °F | 4.11 in. |
| May | 46.6 °F | 68.7 °F | 4.52 in. |
| June | 56.0 °F | 77.9 °F | 4.11 in. |
| July | 59.6 °F | 81.5 °F | 3.8 in. |
| August | 58.5 °F | 80.0 °F | 3.64 in. |
| September | 51.0 °F | 73.8 °F | 3.35 in. |
| October | 40.5 °F | 60.8 °F | 3.91 in. |
| November | 31.5 °F | 47.1 °F | 3.27 in. |
| December | 23.8 °F | 36.1 °F | 2.96 in. |
| Annual | 38.7 °F | 57.6 °F | 42.15 in. |
| 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 : -10°F to -5°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 |