Starksboro, Vermont has a Humid Continental Mild Summer, Wet All Year climate (Köppen classification: Dfb). Average annual temperatures range from 30.6 °F (low) to 50.5 °F (high). Annual precipitation averages 55.9 Inches. Starksboro 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.11 - Sep. 20.
| Month | Avg. Low | Avg. High | Avg. Precip |
|---|---|---|---|
| January | 5.9 °F | 24.4 °F | 3.2 in. |
| February | 6.7 °F | 27.5 °F | 2.98 in. |
| March | 15.2 °F | 35.1 °F | 3.95 in. |
| April | 27.9 °F | 48.9 °F | 4.42 in. |
| May | 40.2 °F | 62.0 °F | 5.55 in. |
| June | 48.4 °F | 70.1 °F | 5.87 in. |
| July | 53.4 °F | 74.7 °F | 5.47 in. |
| August | 52.0 °F | 72.8 °F | 5.07 in. |
| September | 44.8 °F | 66.2 °F | 5.28 in. |
| October | 34.1 °F | 53.6 °F | 5.76 in. |
| November | 24.5 °F | 40.7 °F | 3.99 in. |
| December | 13.6 °F | 30.1 °F | 4.32 in. |
| Annual | 30.6 °F | 50.5 °F | 55.86 in. |
| Average First Frost Date | Sep.11 - Sep. 20 |
| 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 |