Manchester-by-the-Sea, Massachusetts has a Humid Continental Hot Summers With Year Around Precipitation climate (Köppen classification: Dfa). Average annual temperatures range from 43 °F (low) to 58.1 °F (high). Annual precipitation averages 47.5 Inches. Manchester-by-the-Sea 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. 21 - Oct. 31.
| Month | Avg. Low | Avg. High | Avg. Precip |
|---|---|---|---|
| January | 22.2 °F | 36.6 °F | 3.84 in. |
| February | 23.4 °F | 38.4 °F | 3.55 in. |
| March | 29.6 °F | 43.9 °F | 4.68 in. |
| April | 38.9 °F | 55.1 °F | 4.12 in. |
| May | 48.4 °F | 64.6 °F | 3.57 in. |
| June | 57.9 °F | 74.0 °F | 4.06 in. |
| July | 63.8 °F | 79.7 °F | 3.5 in. |
| August | 62.9 °F | 78.8 °F | 3.32 in. |
| September | 56.7 °F | 72.1 °F | 3.62 in. |
| October | 46.5 °F | 61.1 °F | 4.65 in. |
| November | 37.1 °F | 51.0 °F | 3.86 in. |
| December | 28.3 °F | 42.2 °F | 4.72 in. |
| Annual | 43 °F | 58.1 °F | 47.49 in. |
| Average First Frost Date | Oct. 21 - Oct. 31 |
| 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 | Normal |
| Köppen Climate Classification | Dfa - Humid Continental Hot Summers With Year Around Precipitation |