Underhill Center, Vermont has a Humid Continental Mild Summer, Wet All Year climate (Köppen classification: Dfb). Average annual temperatures range from 33.4 °F (low) to 53.4 °F (high). Annual precipitation averages 49.5 Inches. Underhill Center is located in USDA Plant Hardiness Zone 5a. The growing season typically runs from the last frost around Apr. 11 - Apr. 20 through the first frost around Oct. 1 - Oct. 10.
| Month | Avg. Low | Avg. High | Avg. Precip |
|---|---|---|---|
| January | 7.2 °F | 26.2 °F | 3.14 in. |
| February | 8.3 °F | 29.2 °F | 2.49 in. |
| March | 17.8 °F | 38.1 °F | 3.37 in. |
| April | 31.4 °F | 51.7 °F | 4.1 in. |
| May | 43.0 °F | 65.5 °F | 4.4 in. |
| June | 52.5 °F | 73.9 °F | 5.07 in. |
| July | 57.3 °F | 78.4 °F | 4.96 in. |
| August | 55.6 °F | 76.9 °F | 4.61 in. |
| September | 47.8 °F | 69.5 °F | 4.51 in. |
| October | 37.0 °F | 56.0 °F | 5.12 in. |
| November | 27.3 °F | 43.7 °F | 3.93 in. |
| December | 16.1 °F | 32.2 °F | 3.77 in. |
| Annual | 33.4 °F | 53.4 °F | 49.47 in. |
| Average First Frost Date | Oct. 1 - Oct. 10 |
| Average Last Frost Date | Apr. 11 - Apr. 20 |
| Average Days With Frost | Over 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 |