Ferrisburgh, Vermont has a Humid Continental Mild Summer, Wet All Year climate (Köppen classification: Dfb). Average annual temperatures range from 2.6 °C (low) to 13.6 °C (high). Annual precipitation averages 899.2 Millimeters. Ferrisburgh is located in USDA Plant Hardiness Zone 5a. 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 | -11.6 °C | -1.6 °C | 59.69 mm |
| February | -10.9 °C | -0.2 °C | 44.96 mm |
| March | -5.6 °C | 4.7 °C | 56.9 mm |
| April | 1 °C | 12.8 °C | 70.1 mm |
| May | 7.7 °C | 20.1 °C | 79.76 mm |
| June | 13.1 °C | 24.9 °C | 96.52 mm |
| July | 15.9 °C | 27.9 °C | 102.36 mm |
| August | 15.1 °C | 27 °C | 89.15 mm |
| September | 10.4 °C | 22.8 °C | 75.95 mm |
| October | 4.2 °C | 15 °C | 86.11 mm |
| November | -0.9 °C | 8.1 °C | 69.34 mm |
| December | -7.1 °C | 1.6 °C | 68.33 mm |
| Annual | 2.6 °C | 13.6 °C | 899.17 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 5a : -28.9°C to -26.1°C |
| Plant Hardiness Zone - 2012 | Zone 5a : -28.9°C to -26.1°C |
| Current Drought Conditions | Normal |
| Köppen Climate Classification | Dfb - Humid Continental Mild Summer, Wet All Year |