East Douglas, Massachusetts has a Humid Continental Mild Summer, Wet All Year climate (Köppen classification: Dfb). Average annual temperatures range from 39 °F (low) to 59.7 °F (high). Annual precipitation averages 49.8 Inches. East Douglas is located in USDA Plant Hardiness Zone 6b. The growing season typically runs from the last frost around Apr. 11 - Apr. 20 through the first frost around Oct. 21 - Oct. 31.
| Month | Avg. Low | Avg. High | Avg. Precip |
|---|---|---|---|
| January | 16.9 °F | 35.8 °F | 3.89 in. |
| February | 18.3 °F | 38.3 °F | 3.51 in. |
| March | 25.8 °F | 45.8 °F | 4.75 in. |
| April | 36.0 °F | 58.4 °F | 4.53 in. |
| May | 46.5 °F | 68.9 °F | 3.52 in. |
| June | 55.5 °F | 77.1 °F | 4.14 in. |
| July | 61.6 °F | 82.4 °F | 3.8 in. |
| August | 59.8 °F | 80.8 °F | 4.05 in. |
| September | 52.4 °F | 73.9 °F | 3.95 in. |
| October | 40.9 °F | 62.2 °F | 4.93 in. |
| November | 31.5 °F | 51.3 °F | 3.88 in. |
| December | 23.1 °F | 41.0 °F | 4.87 in. |
| Annual | 39 °F | 59.7 °F | 49.82 in. |
| Average First Frost Date | Oct. 21 - Oct. 31 |
| Average Last Frost Date | Apr. 11 - Apr. 20 |
| Average Days With Frost | 125-150 Days |
| Plant Hardiness Zone | Zone 6b : -5°F to 0°F |
| Plant Hardiness Zone - 2012 | Zone 6a : -10°F to -5°F |
| Current Drought Conditions | Moderate Drought |
| Köppen Climate Classification | Dfb - Humid Continental Mild Summer, Wet All Year |