Strafford, Vermont has a Humid Continental Mild Summer, Wet All Year climate (Köppen classification: Dfb). Average annual temperatures range from 31.8 °F (low) to 52.3 °F (high). Annual precipitation averages 46.2 Inches. Strafford 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 Oct. 1 - Oct. 10.
| Month | Avg. Low | Avg. High | Avg. Precip |
|---|---|---|---|
| January | 6.6 °F | 25.3 °F | 3.21 in. |
| February | 7.8 °F | 28.5 °F | 2.65 in. |
| March | 16.8 °F | 37.1 °F | 3.26 in. |
| April | 29.6 °F | 51.2 °F | 3.63 in. |
| May | 41.5 °F | 64.3 °F | 3.87 in. |
| June | 50.3 °F | 72.4 °F | 4.63 in. |
| July | 55.1 °F | 76.9 °F | 4.64 in. |
| August | 53.2 °F | 75.6 °F | 4.26 in. |
| September | 45.9 °F | 68.4 °F | 3.6 in. |
| October | 35.3 °F | 55.2 °F | 4.94 in. |
| November | 25.5 °F | 42.1 °F | 3.53 in. |
| December | 14.5 °F | 30.8 °F | 3.97 in. |
| Annual | 31.8 °F | 52.3 °F | 46.19 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 5a : -20°F to -15°F |
| Plant Hardiness Zone - 2012 | Zone 4b : -25°F to -20°F |
| Current Drought Conditions | Abnormally Dry |
| Köppen Climate Classification | Dfb - Humid Continental Mild Summer, Wet All Year |