South Woodstock, Connecticut has a Humid Continental Mild Summer, Wet All Year climate (Köppen classification: Dfb). Average annual temperatures range from 37.9 °F (low) to 59.9 °F (high). Annual precipitation averages 49.8 Inches. South Woodstock is located in USDA Plant Hardiness Zone 6a. The growing season typically runs from the last frost around Apr. 11 - Apr. 20 through the first frost around Oct. 11 - Oct. 20.
| Month | Avg. Low | Avg. High | Avg. Precip |
|---|---|---|---|
| January | 16.3 °F | 36.0 °F | 3.85 in. |
| February | 17.5 °F | 38.4 °F | 3.37 in. |
| March | 25.0 °F | 46.1 °F | 4.42 in. |
| April | 34.8 °F | 58.8 °F | 4.4 in. |
| May | 44.8 °F | 69.5 °F | 3.49 in. |
| June | 54.0 °F | 77.4 °F | 4.29 in. |
| July | 60.3 °F | 82.6 °F | 3.97 in. |
| August | 58.0 °F | 80.7 °F | 4.27 in. |
| September | 51.2 °F | 74.0 °F | 4.28 in. |
| October | 40.0 °F | 62.3 °F | 4.83 in. |
| November | 30.4 °F | 51.4 °F | 3.98 in. |
| December | 22.3 °F | 41.2 °F | 4.64 in. |
| Annual | 37.9 °F | 59.9 °F | 49.79 in. |
| Average First Frost Date | Oct. 11 - Oct. 20 |
| Average Last Frost Date | Apr. 11 - Apr. 20 |
| 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 | Dfb - Humid Continental Mild Summer, Wet All Year |