Forestville, Quebec climate data is summarized below. Average annual temperatures range from -0.3 °C (low) to 7.3 °C (high). Annual precipitation averages 707 Millimeters. 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 | -15.83 °C | -7.49 °C | 0 mm |
| February | -14.7 °C | -6.22 °C | 0 mm |
| March | -10.72 °C | -1.72 °C | 0 mm |
| April | -2.32 °C | 4.38 °C | 61 mm |
| May | 4.33 °C | 12.55 °C | 67 mm |
| June | 9.95 °C | 18.33 °C | 98 mm |
| July | 13.25 °C | 21.25 °C | 101 mm |
| August | 13 °C | 20.74 °C | 93 mm |
| September | 8.48 °C | 16.5 °C | 95 mm |
| October | 3.48 °C | 9.99 °C | 108 mm |
| November | -1.8 °C | 3.53 °C | 71 mm |
| December | -10.64 °C | -3.87 °C | 13 mm |
| Annual | -0.3 °C | 7.3 °C | 707 mm |
| 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 : -34.4°C to -31.7°C |
| Current Drought Conditions | Normal |