New Bedford, Massachusetts has a Humid Continental Hot Summers With Year Around Precipitation climate (Köppen classification: Dfa). Average annual temperatures range from 44 °F (low) to 59.8 °F (high). Annual precipitation averages 51.5 Inches. New Bedford is located in USDA Plant Hardiness Zone 7a. The growing season typically runs from the last frost around Apr. 11 - Apr. 20 through the first frost around Oct. 11 - Oct. 20.
| Month | Avg. Low | Avg. High | Avg. Precip |
|---|---|---|---|
| January | 23.7 °F | 38.3 °F | 4.46 in. |
| February | 24.4 °F | 39.7 °F | 3.81 in. |
| March | 29.8 °F | 45.7 °F | 5.6 in. |
| April | 39.6 °F | 56.3 °F | 4.53 in. |
| May | 49.2 °F | 66.1 °F | 3.57 in. |
| June | 58.9 °F | 75.5 °F | 3.91 in. |
| July | 65.7 °F | 81.8 °F | 3.3 in. |
| August | 63.8 °F | 80.8 °F | 3.89 in. |
| September | 58.0 °F | 74.1 °F | 3.94 in. |
| October | 47.4 °F | 63.1 °F | 4.68 in. |
| November | 38.3 °F | 52.8 °F | 4.58 in. |
| December | 29.7 °F | 43.9 °F | 5.23 in. |
| Annual | 44 °F | 59.8 °F | 51.5 in. |
| Average First Frost Date | Oct. 11 - Oct. 20 |
| Average Last Frost Date | Apr. 11 - Apr. 20 |
| 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 |