Canton Valley, Connecticut has a Humid Continental Hot Summers With Year Around Precipitation climate (Köppen classification: Dfa). Average annual temperatures range from 38.1 °F (low) to 59.5 °F (high). Annual precipitation averages 52.6 Inches. Canton Valley is located in USDA Plant Hardiness Zone 6a. The growing season typically runs from the last frost around Apr. 21 - Apr. 30 through the first frost around Oct. 1 - Oct. 10.
| Month | Avg. Low | Avg. High | Avg. Precip |
|---|---|---|---|
| January | 16.2 °F | 34.5 °F | 3.68 in. |
| February | 17.3 °F | 37.5 °F | 3.31 in. |
| March | 24.7 °F | 45.5 °F | 4.27 in. |
| April | 35.1 °F | 58.7 °F | 4.04 in. |
| May | 45.6 °F | 69.7 °F | 4.07 in. |
| June | 55.1 °F | 78.1 °F | 4.74 in. |
| July | 60.3 °F | 83.0 °F | 4.64 in. |
| August | 58.6 °F | 81.1 °F | 4.74 in. |
| September | 51.3 °F | 73.9 °F | 4.95 in. |
| October | 39.8 °F | 61.7 °F | 5.58 in. |
| November | 30.4 °F | 50.1 °F | 3.99 in. |
| December | 22.3 °F | 39.6 °F | 4.63 in. |
| Annual | 38.1 °F | 59.5 °F | 52.64 in. |
| Average First Frost Date | Oct. 1 - Oct. 10 |
| Average Last Frost Date | Apr. 21 - Apr. 30 |
| Average Days With Frost | 125-150 Days |
| Plant Hardiness Zone | Zone 6a : -10°F to -5°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 |