Hubbardston, Michigan has a Humid Continental Mild Summer, Wet All Year climate (Köppen classification: Dfb). Average annual temperatures range from 3.3 °C (low) to 14.1 °C (high). Annual precipitation averages 899.7 Millimeters. Hubbardston 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 | -9.2 °C | -1.3 °C | 57.4 mm |
| February | -8.9 °C | 0.2 °C | 49.78 mm |
| March | -4.3 °C | 6.2 °C | 55.63 mm |
| April | 1.6 °C | 13.7 °C | 90.42 mm |
| May | 8.1 °C | 20.4 °C | 100.58 mm |
| June | 13.8 °C | 25.8 °C | 90.68 mm |
| July | 15.6 °C | 27.9 °C | 82.55 mm |
| August | 14.7 °C | 26.8 °C | 89.41 mm |
| September | 10.1 °C | 23.1 °C | 75.44 mm |
| October | 4.4 °C | 15.9 °C | 84.58 mm |
| November | -0.7 °C | 8.2 °C | 68.83 mm |
| December | -5.4 °C | 1.7 °C | 54.36 mm |
| Annual | 3.3 °C | 14.1 °C | 899.66 mm |
| 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 : -23.3°C to -20.6°C |
| Plant Hardiness Zone - 2012 | Zone 5b : -26.1°C to -23.3°C |
| Current Drought Conditions | Normal |
| Köppen Climate Classification | Dfb - Humid Continental Mild Summer, Wet All Year |