Bennington, Vermont has a Humid Continental Mild Summer, Wet All Year climate (Köppen classification: Dfb). Average annual temperatures range from 2.1 °C (low) to 13.9 °C (high). Annual precipitation averages 1146.3 Millimeters. Bennington is located in USDA Plant Hardiness Zone 5b. The growing season typically runs from the last frost around May 1 - May 10 through the first frost around Oct. 1 - Oct. 10.
| Month | Avg. Low | Avg. High | Avg. Precip |
|---|---|---|---|
| January | -10.9 °C | -0.4 °C | 83.31 mm |
| February | -10.2 °C | 1.1 °C | 58.67 mm |
| March | -5.5 °C | 5.8 °C | 75.69 mm |
| April | 0.9 °C | 13.6 °C | 95.25 mm |
| May | 6.8 °C | 20.1 °C | 93.73 mm |
| June | 11.8 °C | 24.6 °C | 111.25 mm |
| July | 14.3 °C | 26.9 °C | 123.19 mm |
| August | 13.4 °C | 26.1 °C | 107.7 mm |
| September | 9.2 °C | 22.3 °C | 97.28 mm |
| October | 3.6 °C | 15.3 °C | 110.49 mm |
| November | -1.8 °C | 8.6 °C | 91.69 mm |
| December | -6.7 °C | 2.6 °C | 98.04 mm |
| Annual | 2.1 °C | 13.9 °C | 1146.29 mm |
| Average First Frost Date | Oct. 1 - Oct. 10 |
| Average Last Frost Date | May 1 - May 10 |
| Average Days With Frost | 125-150 Days |
| Plant Hardiness Zone | Zone 5b : -26.1°C to -23.3°C |
| Plant Hardiness Zone - 2012 | Zone 5a : -28.9°C to -26.1°C |
| Current Drought Conditions | Normal |
| Köppen Climate Classification | Dfb - Humid Continental Mild Summer, Wet All Year |