Shelburne, Massachusetts has a Humid Continental Mild Summer, Wet All Year climate (Köppen classification: Dfb). Average annual temperatures range from 1.6 °C (low) to 13.1 °C (high). Annual precipitation averages 1367 Millimeters. Shelburne is located in USDA Plant Hardiness Zone 6a. 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 | -11.2 °C | -0.8 °C | 94.49 mm |
| February | -10.8 °C | 0.8 °C | 89.15 mm |
| March | -6.2 °C | 5.2 °C | 106.68 mm |
| April | 0.1 °C | 12.3 °C | 113.28 mm |
| May | 6.1 °C | 18.8 °C | 105.41 mm |
| June | 11.1 °C | 23.7 °C | 127 mm |
| July | 14.2 °C | 26.4 °C | 116.84 mm |
| August | 13.2 °C | 25.6 °C | 110.49 mm |
| September | 8.8 °C | 21.6 °C | 125.73 mm |
| October | 2.9 °C | 14.4 °C | 156.97 mm |
| November | -2.3 °C | 7.8 °C | 108.46 mm |
| December | -7.3 °C | 1.8 °C | 112.52 mm |
| Annual | 1.6 °C | 13.1 °C | 1367.02 mm |
| Average First Frost Date | Oct. 1 - Oct. 10 |
| Average Last Frost Date | May 11 - May 20 |
| 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 | Abnormally Dry |
| Köppen Climate Classification | Dfb - Humid Continental Mild Summer, Wet All Year |