Waterbury Center, Vermont has a Humid Continental Mild Summer, Wet All Year climate (Köppen classification: Dfb). Average annual temperatures range from 32.9 °F (low) to 54.2 °F (high). Annual precipitation averages 46.1 Inches. Waterbury Center is located in USDA Plant Hardiness Zone 4b. 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 | 6.9 °F | 26.5 °F | 3.04 in. |
| February | 7.7 °F | 29.8 °F | 2.55 in. |
| March | 17.6 °F | 38.7 °F | 3.21 in. |
| April | 30.8 °F | 52.4 °F | 3.78 in. |
| May | 42.4 °F | 66.3 °F | 3.97 in. |
| June | 51.7 °F | 74.8 °F | 4.92 in. |
| July | 56.6 °F | 79.6 °F | 4.8 in. |
| August | 54.7 °F | 78.1 °F | 4.35 in. |
| September | 47.4 °F | 70.7 °F | 3.64 in. |
| October | 36.4 °F | 56.8 °F | 4.57 in. |
| November | 26.6 °F | 44.1 °F | 3.46 in. |
| December | 15.5 °F | 32.3 °F | 3.81 in. |
| Annual | 32.9 °F | 54.2 °F | 46.1 in. |
| 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 4b : -25°F to -20°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 |