Wolcott, Vermont has a Humid Continental Mild Summer, Wet All Year climate (Köppen classification: Dfb). Average annual temperatures range from -0.2 °C (low) to 11.7 °C (high). Annual precipitation averages 1128.8 Millimeters. Wolcott is located in USDA Plant Hardiness Zone 4b. The growing season typically runs from the last frost around Apr. 21 - Apr. 30 through the first frost around Oct. 1 - Oct. 10.
| Month | Avg. Low | Avg. High | Avg. Precip |
|---|---|---|---|
| January | -15.1 °C | -3.8 °C | 72.9 mm |
| February | -14.5 °C | -2 °C | 61.72 mm |
| March | -8.8 °C | 3.1 °C | 75.69 mm |
| April | -1 °C | 10.9 °C | 89.66 mm |
| May | 5.5 °C | 18.4 °C | 101.09 mm |
| June | 10.3 °C | 23.2 °C | 118.62 mm |
| July | 13 °C | 25.8 °C | 119.89 mm |
| August | 11.8 °C | 25 °C | 106.68 mm |
| September | 8.2 °C | 21 °C | 94.49 mm |
| October | 1.9 °C | 13.3 °C | 113.03 mm |
| November | -3.7 °C | 6.1 °C | 85.85 mm |
| December | -9.9 °C | -0.4 °C | 89.15 mm |
| Annual | -0.2 °C | 11.7 °C | 1128.77 mm |
| Average First Frost Date | Oct. 1 - Oct. 10 |
| Average Last Frost Date | Apr. 21 - Apr. 30 |
| Average Days With Frost | 150-180 Days |
| Plant Hardiness Zone | Zone 4b : -31.7°C to -28.9°C |
| Plant Hardiness Zone - 2012 | Zone 4a : -34.4°C to -31.7°C |
| Current Drought Conditions | Normal |
| Köppen Climate Classification | Dfb - Humid Continental Mild Summer, Wet All Year |