Berkley, Massachusetts has a Humid Continental Mild Summer, Wet All Year climate (Köppen classification: Dfb). Average annual temperatures range from 41.9 °F (low) to 60.6 °F (high). Annual precipitation averages 51 Inches. Berkley is located in USDA Plant Hardiness Zone 6b. 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 | 38.0 °F | 4.31 in. |
| February | 22.3 °F | 40.0 °F | 3.62 in. |
| March | 28.8 °F | 46.8 °F | 5.29 in. |
| April | 38.2 °F | 58.1 °F | 4.61 in. |
| May | 47.9 °F | 68.4 °F | 3.57 in. |
| June | 57.4 °F | 77.2 °F | 4.06 in. |
| July | 63.7 °F | 83.0 °F | 3.52 in. |
| August | 62.3 °F | 81.7 °F | 3.74 in. |
| September | 55.2 °F | 74.7 °F | 4.09 in. |
| October | 44.3 °F | 63.1 °F | 4.85 in. |
| November | 34.9 °F | 52.6 °F | 4.38 in. |
| December | 26.9 °F | 43.2 °F | 4.92 in. |
| Annual | 41.9 °F | 60.6 °F | 50.96 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 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 | Dfb - Humid Continental Mild Summer, Wet All Year |