Rehoboth, Massachusetts has a Humid Continental Mild Summer, Wet All Year climate (Köppen classification: Dfb). Average annual temperatures range from 42.7 °F (low) to 60.3 °F (high). Annual precipitation averages 51 Inches. Rehoboth 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 | 21.1 °F | 37.8 °F | 4.26 in. |
| February | 22.6 °F | 39.6 °F | 3.65 in. |
| March | 29.3 °F | 46.5 °F | 5.14 in. |
| April | 39.3 °F | 57.6 °F | 4.66 in. |
| May | 48.8 °F | 68.0 °F | 3.58 in. |
| June | 58.6 °F | 76.7 °F | 4.12 in. |
| July | 64.8 °F | 82.6 °F | 3.53 in. |
| August | 63.5 °F | 81.2 °F | 3.81 in. |
| September | 56.5 °F | 74.3 °F | 4.08 in. |
| October | 45.2 °F | 63.0 °F | 4.87 in. |
| November | 35.6 °F | 52.6 °F | 4.38 in. |
| December | 27.4 °F | 43.1 °F | 4.93 in. |
| Annual | 42.7 °F | 60.3 °F | 51.01 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 | Dfb - Humid Continental Mild Summer, Wet All Year |