Hudson, Massachusetts has a Humid Continental Hot Summers With Year Around Precipitation climate (Köppen classification: Dfa). Average annual temperatures range from 38.4 °F (low) to 59.9 °F (high). Annual precipitation averages 49.1 Inches. Hudson 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 | 15.7 °F | 35.1 °F | 3.75 in. |
| February | 17.4 °F | 37.9 °F | 3.37 in. |
| March | 25.3 °F | 45.5 °F | 4.48 in. |
| April | 35.7 °F | 58.4 °F | 4.29 in. |
| May | 46.1 °F | 68.9 °F | 3.68 in. |
| June | 55.5 °F | 77.3 °F | 4.35 in. |
| July | 61.2 °F | 83.4 °F | 3.78 in. |
| August | 59.8 °F | 81.9 °F | 4.02 in. |
| September | 51.3 °F | 75.0 °F | 3.97 in. |
| October | 40.1 °F | 62.8 °F | 4.89 in. |
| November | 30.5 °F | 51.5 °F | 3.86 in. |
| December | 22.2 °F | 40.9 °F | 4.67 in. |
| Annual | 38.4 °F | 59.9 °F | 49.11 in. |
| Average First Frost Date | Oct. 11 - Oct. 20 |
| Average Last Frost Date | Apr. 21 - Apr. 30 |
| Average Days With Frost | 125-150 Days |
| Plant Hardiness Zone | Zone 6b : -5°F to 0°F |
| Plant Hardiness Zone - 2012 | Zone 6a : -10°F to -5°F |
| Current Drought Conditions | Moderate Drought |
| Köppen Climate Classification | Dfa - Humid Continental Hot Summers With Year Around Precipitation |