Becket, Massachusetts has a Humid Continental Mild Summer, Wet All Year climate (Köppen classification: Dfb). Average annual temperatures range from 38 °F (low) to 55 °F (high). Annual precipitation averages 55.8 Inches. Becket is located in USDA Plant Hardiness Zone 6a. The growing season typically runs from the last frost around May 11 - May 20 through the first frost around Oct. 1 - Oct. 10.
| Month | Avg. Low | Avg. High | Avg. Precip |
|---|---|---|---|
| January | 16.4 °F | 30.4 °F | 3.76 in. |
| February | 17.3 °F | 32.8 °F | 3.45 in. |
| March | 23.7 °F | 40.7 °F | 4.21 in. |
| April | 34.3 °F | 54.0 °F | 4.27 in. |
| May | 45.5 °F | 65.5 °F | 4.7 in. |
| June | 54.4 °F | 73.4 °F | 5.15 in. |
| July | 59.3 °F | 78.3 °F | 5.0 in. |
| August | 58.4 °F | 76.8 °F | 5.25 in. |
| September | 51.5 °F | 70.0 °F | 5.24 in. |
| October | 41.8 °F | 57.8 °F | 5.56 in. |
| November | 30.9 °F | 45.0 °F | 4.27 in. |
| December | 22.7 °F | 35.6 °F | 4.92 in. |
| Annual | 38 °F | 55 °F | 55.78 in. |
| Average First Frost Date | Oct. 1 - Oct. 10 |
| Average Last Frost Date | May 11 - May 20 |
| Average Days With Frost | 150-180 Days |
| Plant Hardiness Zone | Zone 6a : -10°F to -5°F |
| Plant Hardiness Zone - 2012 | Zone 5b : -15°F to -10°F |
| Current Drought Conditions | Moderate Drought |
| Köppen Climate Classification | Dfb - Humid Continental Mild Summer, Wet All Year |