Hampstead, Quebec climate data is summarized below. Average annual temperatures range from 38.5 °F (low) to 53.3 °F (high). Annual precipitation averages 36.9 Inches. Hampstead 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. 11 - Oct. 20.
| Month | Avg. Low | Avg. High | Avg. Precip |
|---|---|---|---|
| January | -24.2 °F | -20.1 °F | 406.4 in. |
| February | -24 °F | -19.9 °F | 457.2 in. |
| March | -20.7 °F | -16.1 °F | 1371.6 in. |
| April | -16.4 °F | -11.2 °F | 2743.2 in. |
| May | -12.5 °F | -7 °F | 2260.6 in. |
| June | -9.7 °F | -4.6 °F | 2616.2 in. |
| July | -8.1 °F | -3.1 °F | 3454.4 in. |
| August | -8.5 °F | -3.6 °F | 2743.2 in. |
| September | -11.1 °F | -6 °F | 1828.8 in. |
| October | -14.4 °F | -10.3 °F | 2794 in. |
| November | -17.8 °F | -14.1 °F | 1930.4 in. |
| December | -21.7 °F | -18.5 °F | 1193.8 in. |
| Annual | 38.5 °F | 53.3 °F | 36.88 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 6a : -10°F to -5°F |
| Current Drought Conditions | Normal |