Barnet, Vermont has a Humid Continental Mild Summer, Wet All Year climate (Köppen classification: Dfb). Average annual temperatures range from 32.4 °F (low) to 54.6 °F (high). Annual precipitation averages 39.7 Inches. Barnet is located in USDA Plant Hardiness Zone 4b. The growing season typically runs from the last frost around May 21 - May 31 through the first frost around Oct. 1 - Oct. 10.
| Month | Avg. Low | Avg. High | Avg. Precip |
|---|---|---|---|
| January | 5.8 °F | 26.9 °F | 2.49 in. |
| February | 6.5 °F | 30.5 °F | 2.05 in. |
| March | 16.8 °F | 39.9 °F | 2.53 in. |
| April | 30.1 °F | 53.1 °F | 3.13 in. |
| May | 42.1 °F | 66.4 °F | 4.0 in. |
| June | 51.4 °F | 74.8 °F | 3.8 in. |
| July | 56.8 °F | 79.9 °F | 3.96 in. |
| August | 54.7 °F | 78.4 °F | 4.19 in. |
| September | 47.2 °F | 71.0 °F | 3.8 in. |
| October | 35.9 °F | 57.3 °F | 3.99 in. |
| November | 26.4 °F | 44.6 °F | 2.76 in. |
| December | 15.1 °F | 32.8 °F | 2.96 in. |
| Annual | 32.4 °F | 54.6 °F | 39.66 in. |
| Average First Frost Date | Oct. 1 - Oct. 10 |
| Average Last Frost Date | May 21 - May 31 |
| Average Days With Frost | 150-180 Days |
| Plant Hardiness Zone | Zone 4b : -25°F to -20°F |
| Plant Hardiness Zone - 2012 | Zone 4a : -30°F to -25°F |
| Current Drought Conditions | Normal |
| Köppen Climate Classification | Dfb - Humid Continental Mild Summer, Wet All Year |