Cabot, Vermont has a Humid Continental Mild Summer, Wet All Year climate (Köppen classification: Dfb). Average annual temperatures range from -0.4 °C (low) to 11.4 °C (high). Annual precipitation averages 1144.5 Millimeters. Cabot is located in USDA Plant Hardiness Zone 4b. 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 | -14.7 °C | -4 °C | 71.37 mm |
| February | -14.4 °C | -2.3 °C | 61.98 mm |
| March | -8.8 °C | 2.8 °C | 75.44 mm |
| April | -1.5 °C | 10.5 °C | 88.65 mm |
| May | 5.1 °C | 18.3 °C | 101.6 mm |
| June | 10.1 °C | 22.9 °C | 117.6 mm |
| July | 12.8 °C | 25.6 °C | 119.63 mm |
| August | 11.6 °C | 24.7 °C | 113.79 mm |
| September | 7.4 °C | 20.6 °C | 96.01 mm |
| October | 1.8 °C | 12.8 °C | 116.84 mm |
| November | -3.9 °C | 5.4 °C | 83.06 mm |
| December | -10.1 °C | -0.8 °C | 98.55 mm |
| Annual | -0.4 °C | 11.4 °C | 1144.52 mm |
| Average First Frost Date | Oct. 1 - Oct. 10 |
| Average Last Frost Date | May 21 - May 31 |
| 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 |