Newfane, Vermont has a Humid Continental Mild Summer, Wet All Year climate (Köppen classification: Dfb). Average annual temperatures range from 34.9 °F (low) to 56.9 °F (high). Annual precipitation averages 49.8 Inches. Newfane is located in USDA Plant Hardiness Zone 5b. 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 | 11.2 °F | 30.7 °F | 3.59 in. |
| February | 12.4 °F | 33.9 °F | 3.06 in. |
| March | 21.1 °F | 42.1 °F | 3.96 in. |
| April | 32.3 °F | 55.4 °F | 4.01 in. |
| May | 43.5 °F | 67.7 °F | 4.06 in. |
| June | 52.8 °F | 76.5 °F | 4.33 in. |
| July | 58.0 °F | 81.5 °F | 4.21 in. |
| August | 56.0 °F | 80.0 °F | 4.24 in. |
| September | 48.2 °F | 72.6 °F | 4.34 in. |
| October | 36.9 °F | 59.5 °F | 5.59 in. |
| November | 28.1 °F | 47.0 °F | 4.0 in. |
| December | 18.6 °F | 35.9 °F | 4.45 in. |
| Annual | 34.9 °F | 56.9 °F | 49.84 in. |
| Average First Frost Date | Oct. 1 - Oct. 10 |
| Average Last Frost Date | May 11 - May 20 |
| Average Days With Frost | 150-180 Days |
| Plant Hardiness Zone | Zone 5b : -15°F to -10°F |
| Plant Hardiness Zone - 2012 | Zone 5b : -15°F to -10°F |
| Current Drought Conditions | Abnormally Dry |
| Köppen Climate Classification | Dfb - Humid Continental Mild Summer, Wet All Year |