Shutesbury, Massachusetts has a Humid Continental Mild Summer, Wet All Year climate (Köppen classification: Dfb). Average annual temperatures range from 1.2 °C (low) to 13.4 °C (high). Annual precipitation averages 1316.5 Millimeters. Shutesbury is located in USDA Plant Hardiness Zone 5b. The growing season typically runs from the last frost around May 21 - May 31 through the first frost around Oct. 1 - Oct. 10.
| Month | Avg. Low | Avg. High | Avg. Precip |
|---|---|---|---|
| January | -12.2 °C | -0.8 °C | 94.23 mm |
| February | -11.1 °C | 0.4 °C | 85.09 mm |
| March | -6.6 °C | 5.1 °C | 106.68 mm |
| April | -0.3 °C | 12.9 °C | 105.16 mm |
| May | 6.3 °C | 19.2 °C | 98.04 mm |
| June | 10.9 °C | 24 °C | 123.44 mm |
| July | 13.9 °C | 27 °C | 111.51 mm |
| August | 12.5 °C | 26 °C | 123.95 mm |
| September | 8.6 °C | 22.1 °C | 125.22 mm |
| October | 2.6 °C | 14.6 °C | 131.06 mm |
| November | -2.1 °C | 8.2 °C | 98.04 mm |
| December | -8.2 °C | 1.9 °C | 114.05 mm |
| Annual | 1.2 °C | 13.4 °C | 1316.47 mm |
| Average First Frost Date | Oct. 1 - Oct. 10 |
| Average Last Frost Date | May 21 - May 31 |
| Average Days With Frost | 125-150 Days |
| Plant Hardiness Zone | Zone 5b : -26.1°C to -23.3°C |
| Plant Hardiness Zone - 2012 | Zone 5b : -26.1°C to -23.3°C |
| Current Drought Conditions | Moderate Drought |
| Köppen Climate Classification | Dfb - Humid Continental Mild Summer, Wet All Year |