Wells, Vermont has a Humid Continental Mild Summer, Wet All Year climate (Köppen classification: Dfb). Average annual temperatures range from 35.6 °F (low) to 57.1 °F (high). Annual precipitation averages 43.2 Inches. Wells is located in USDA Plant Hardiness Zone 5a. The growing season typically runs from the last frost around May 11 - May 20 through the first frost around Oct. 1 - Oct. 10.
| Month | Avg. Low | Avg. High | Avg. Precip |
|---|---|---|---|
| January | 10.8 °F | 30.0 °F | 2.98 in. |
| February | 11.4 °F | 33.2 °F | 2.28 in. |
| March | 21.7 °F | 42.1 °F | 3.02 in. |
| April | 33.6 °F | 56.7 °F | 3.42 in. |
| May | 44.7 °F | 69.2 °F | 3.69 in. |
| June | 54.2 °F | 77.3 °F | 4.62 in. |
| July | 58.6 °F | 81.9 °F | 4.41 in. |
| August | 57.0 °F | 80.1 °F | 4.21 in. |
| September | 49.0 °F | 73.0 °F | 3.73 in. |
| October | 38.1 °F | 59.9 °F | 4.15 in. |
| November | 28.7 °F | 46.9 °F | 3.26 in. |
| December | 19.5 °F | 35.4 °F | 3.45 in. |
| Annual | 35.6 °F | 57.1 °F | 43.22 in. |
| Average First Frost Date | Oct. 1 - Oct. 10 |
| Average Last Frost Date | May 11 - May 20 |
| Average Days With Frost | 125-150 Days |
| Plant Hardiness Zone | Zone 5a : -20°F to -15°F |
| Plant Hardiness Zone - 2012 | Zone 5a : -20°F to -15°F |
| Current Drought Conditions | Normal |
| Köppen Climate Classification | Dfb - Humid Continental Mild Summer, Wet All Year |