Woodstock, New Hampshire has a Humid Continental Mild Summer, Wet All Year climate (Köppen classification: Dfb). Average annual temperatures range from 33.8 °F (low) to 51.7 °F (high). Annual precipitation averages 55.6 Inches. Woodstock is located in USDA Plant Hardiness Zone 5b. The growing season typically runs from the last frost around May 1 - May 10 through the first frost around Sep. 21 - Sep. 30.
| Month | Avg. Low | Avg. High | Avg. Precip |
|---|---|---|---|
| January | 9.3 °F | 26.1 °F | 4.01 in. |
| February | 10.9 °F | 29.3 °F | 3.36 in. |
| March | 19.0 °F | 37.4 °F | 4.09 in. |
| April | 31.0 °F | 50.1 °F | 4.35 in. |
| May | 43.1 °F | 63.6 °F | 4.64 in. |
| June | 52.1 °F | 71.4 °F | 5.07 in. |
| July | 56.4 °F | 75.7 °F | 5.08 in. |
| August | 55.3 °F | 74.2 °F | 5.13 in. |
| September | 48.1 °F | 66.5 °F | 4.63 in. |
| October | 36.6 °F | 53.7 °F | 5.68 in. |
| November | 27.2 °F | 41.4 °F | 4.7 in. |
| December | 17.1 °F | 31.3 °F | 4.83 in. |
| Annual | 33.8 °F | 51.7 °F | 55.57 in. |
| Average First Frost Date | Sep. 21 - Sep. 30 |
| Average Last Frost Date | May 1 - May 10 |
| Average Days With Frost | 150-180 Days |
| Plant Hardiness Zone | Zone 5b : -15°F to -10°F |
| Plant Hardiness Zone - 2012 | Zone 5a : -20°F to -15°F |
| Current Drought Conditions | Normal |
| Köppen Climate Classification | Dfb - Humid Continental Mild Summer, Wet All Year |