Melrose, Massachusetts has a Humid Continental Hot Summers With Year Around Precipitation climate (Köppen classification: Dfa). Average annual temperatures range from 41.7 °F (low) to 59.7 °F (high). Annual precipitation averages 50.8 Inches. Melrose 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 Nov. 1 - Nov. 10.
| Month | Avg. Low | Avg. High | Avg. Precip |
|---|---|---|---|
| January | 19.7 °F | 36.6 °F | 4.08 in. |
| February | 21.4 °F | 39.0 °F | 3.75 in. |
| March | 28.4 °F | 45.4 °F | 4.93 in. |
| April | 38.6 °F | 57.3 °F | 4.4 in. |
| May | 48.4 °F | 67.4 °F | 3.72 in. |
| June | 57.9 °F | 76.7 °F | 4.3 in. |
| July | 63.8 °F | 82.5 °F | 3.87 in. |
| August | 62.5 °F | 80.9 °F | 3.74 in. |
| September | 55.2 °F | 73.8 °F | 3.96 in. |
| October | 43.9 °F | 62.4 °F | 4.97 in. |
| November | 34.6 °F | 51.9 °F | 4.18 in. |
| December | 26.1 °F | 42.1 °F | 4.93 in. |
| Annual | 41.7 °F | 59.7 °F | 50.83 in. |
| Average First Frost Date | Nov. 1 - Nov. 10 |
| Average Last Frost Date | Apr. 11 - Apr. 20 |
| Average Days With Frost | 100-125 Days |
| Plant Hardiness Zone | Zone 6b : -5°F to 0°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 |