Forestville, Quebec climate data is summarized below. Average annual temperatures range from 31.5 °F (low) to 45.2 °F (high). Annual precipitation averages 27.8 Inches. Forestville is located in USDA Plant Hardiness Zone 4a. The growing season typically runs from the last frost around May 11 - May 20 through the first frost around Oct. 1 - Oct. 10.
| Month | Avg. Low | Avg. High | Avg. Precip |
|---|---|---|---|
| January | -26.6 °F | -21.9 °F | 0 in. |
| February | -25.9 °F | -21.2 °F | 0 in. |
| March | -23.7 °F | -18.7 °F | 0 in. |
| April | -19.1 °F | -15.3 °F | 1549.4 in. |
| May | -15.4 °F | -10.8 °F | 1701.8 in. |
| June | -12.3 °F | -7.6 °F | 2489.2 in. |
| July | -10.4 °F | -6 °F | 2565.4 in. |
| August | -10.6 °F | -6.3 °F | 2362.2 in. |
| September | -13.1 °F | -8.6 °F | 2413 in. |
| October | -15.8 °F | -12.2 °F | 2743.2 in. |
| November | -18.8 °F | -15.8 °F | 1803.4 in. |
| December | -23.7 °F | -19.9 °F | 330.2 in. |
| Annual | 31.5 °F | 45.2 °F | 27.84 in. |
| Average First Frost Date | Oct. 1 - Oct. 10 |
| Average Last Frost Date | May 11 - May 20 |
| Average Days With Frost | Over 180 Days |
| Plant Hardiness Zone | Zone 4a : -30°F to -25°F |
| Current Drought Conditions | Normal |