Cavendish, Vermont has a Humid Continental Mild Summer, Wet All Year climate (Köppen classification: Dfb). Average annual temperatures range from 32.9 °F (low) to 55.7 °F (high). Annual precipitation averages 47.4 Inches. Cavendish is located in USDA Plant Hardiness Zone 5a. The growing season typically runs from the last frost around May 21 - May 31 through the first frost around Sep. 21 - Sep. 30.
| Month | Avg. Low | Avg. High | Avg. Precip |
|---|---|---|---|
| January | 8.8 °F | 29.3 °F | 3.52 in. |
| February | 9.5 °F | 32.6 °F | 2.63 in. |
| March | 18.4 °F | 40.6 °F | 3.86 in. |
| April | 30.3 °F | 54.1 °F | 3.77 in. |
| May | 42.0 °F | 67.3 °F | 4.06 in. |
| June | 51.4 °F | 75.3 °F | 4.69 in. |
| July | 56.0 °F | 80.2 °F | 4.13 in. |
| August | 54.0 °F | 78.6 °F | 3.93 in. |
| September | 46.3 °F | 71.7 °F | 4.13 in. |
| October | 35.3 °F | 58.1 °F | 4.88 in. |
| November | 26.1 °F | 45.8 °F | 3.78 in. |
| December | 16.9 °F | 34.5 °F | 4.01 in. |
| Annual | 32.9 °F | 55.7 °F | 47.39 in. |
| Average First Frost Date | Sep. 21 - Sep. 30 |
| Average Last Frost Date | May 21 - May 31 |
| Average Days With Frost | 150-180 Days |
| Plant Hardiness Zone | Zone 5a : -20°F to -15°F |
| Plant Hardiness Zone - 2012 | Zone 4b : -25°F to -20°F |
| Current Drought Conditions | Normal |
| Köppen Climate Classification | Dfb - Humid Continental Mild Summer, Wet All Year |