Weweantic, Massachusetts has a Humid Continental Hot Summers With Year Around Precipitation climate (Köppen classification: Dfa). Average annual temperatures range from 43.2 °F (low) to 59.7 °F (high). Annual precipitation averages 50.9 Inches. Weweantic is located in USDA Plant Hardiness Zone 7a. The growing season typically runs from the last frost around Apr. 21 - Apr. 30 through the first frost around Oct. 11 - Oct. 20.
| Month | Avg. Low | Avg. High | Avg. Precip |
|---|---|---|---|
| January | 23.2 °F | 38.7 °F | 4.26 in. |
| February | 23.8 °F | 40.0 °F | 3.67 in. |
| March | 29.3 °F | 46.0 °F | 5.46 in. |
| April | 38.4 °F | 55.5 °F | 4.5 in. |
| May | 48.1 °F | 65.7 °F | 3.64 in. |
| June | 57.7 °F | 74.8 °F | 3.8 in. |
| July | 64.4 °F | 81.0 °F | 3.23 in. |
| August | 63.3 °F | 80.0 °F | 3.66 in. |
| September | 56.8 °F | 73.5 °F | 4.3 in. |
| October | 46.7 °F | 62.9 °F | 4.91 in. |
| November | 37.6 °F | 53.3 °F | 4.39 in. |
| December | 29.4 °F | 44.4 °F | 5.12 in. |
| Annual | 43.2 °F | 59.7 °F | 50.94 in. |
| Average First Frost Date | Oct. 11 - Oct. 20 |
| Average Last Frost Date | Apr. 21 - Apr. 30 |
| Average Days With Frost | 100-125 Days |
| Plant Hardiness Zone | Zone 7a : 0°F to 5°F |
| Plant Hardiness Zone - 2012 | Zone 6b : -5°F to 0°F |
| Current Drought Conditions | Severe Drought |
| Köppen Climate Classification | Dfa - Humid Continental Hot Summers With Year Around Precipitation |