Bridport, Vermont has a Humid Continental Mild Summer, Wet All Year climate (Köppen classification: Dfb). Average annual temperatures range from 36.5 °F (low) to 56.5 °F (high). Annual precipitation averages 36.6 Inches. Bridport is located in USDA Plant Hardiness Zone 5a. 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 | 11.4 °F | 29.3 °F | 2.41 in. |
| February | 12.2 °F | 31.4 °F | 1.92 in. |
| March | 22.3 °F | 40.4 °F | 2.37 in. |
| April | 33.6 °F | 55.4 °F | 3.0 in. |
| May | 45.5 °F | 68.1 °F | 3.17 in. |
| June | 55.3 °F | 77.3 °F | 3.84 in. |
| July | 60.1 °F | 82.4 °F | 3.73 in. |
| August | 58.7 °F | 80.8 °F | 3.45 in. |
| September | 50.5 °F | 73.3 °F | 3.16 in. |
| October | 39.2 °F | 58.8 °F | 3.79 in. |
| November | 30.3 °F | 46.1 °F | 2.76 in. |
| December | 19.3 °F | 34.6 °F | 2.98 in. |
| Annual | 36.5 °F | 56.5 °F | 36.58 in. |
| Average First Frost Date | Oct. 1 - Oct. 10 |
| Average Last Frost Date | May 1 - May 10 |
| Average Days With Frost | 150-180 Days |
| Plant Hardiness Zone | Zone 5a : -20°F to -15°F |
| Plant Hardiness Zone - 2012 | Zone 5a : -20°F to -15°F |
| Current Drought Conditions | Normal |
| Köppen Climate Classification | Dfb - Humid Continental Mild Summer, Wet All Year |