Barnard, Vermont has a Humid Continental Mild Summer, Wet All Year climate (Köppen classification: Dfb). Average annual temperatures range from 31.8 °F (low) to 51.7 °F (high). Annual precipitation averages 48.5 Inches. Barnard 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 | 7.0 °F | 24.2 °F | 3.3 in. |
| February | 7.4 °F | 27.4 °F | 2.82 in. |
| March | 16.3 °F | 36.4 °F | 3.52 in. |
| April | 28.3 °F | 51.1 °F | 3.81 in. |
| May | 42.5 °F | 64.2 °F | 3.99 in. |
| June | 50.0 °F | 71.8 °F | 5.03 in. |
| July | 55.6 °F | 76.4 °F | 4.82 in. |
| August | 53.9 °F | 75.4 °F | 4.42 in. |
| September | 46.6 °F | 68.1 °F | 4.02 in. |
| October | 35.6 °F | 54.9 °F | 5.05 in. |
| November | 24.9 °F | 40.9 °F | 3.59 in. |
| December | 13.1 °F | 29.6 °F | 4.12 in. |
| Annual | 31.8 °F | 51.7 °F | 48.49 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 |