Dolbeau-Mistassini, Quebec climate data is summarized below. Average annual temperatures range from 27.3 °F (low) to 46.3 °F (high). Annual precipitation averages 32.7 Inches. Dolbeau-Mistassini is located in USDA Plant Hardiness Zone 2b. The growing season typically runs from the last frost around May 21 - May 31 through the first frost around Sep.11 - Sep. 20.
| Month | Avg. Low | Avg. High | Avg. Precip |
|---|---|---|---|
| January | -29.6 °F | -23.6 °F | 0 in. |
| February | -28.9 °F | -22.6 °F | 0 in. |
| March | -25.8 °F | -19.1 °F | 0 in. |
| April | -20 °F | -14.2 °F | 1473.2 in. |
| May | -15.6 °F | -8.3 °F | 2362.2 in. |
| June | -12.3 °F | -5.6 °F | 3225.8 in. |
| July | -10.7 °F | -4.6 °F | 3835.4 in. |
| August | -11.1 °F | -5 °F | 3556 in. |
| September | -13.9 °F | -7.9 °F | 2895.6 in. |
| October | -16.7 °F | -12 °F | 2565.4 in. |
| November | -20.1 °F | -16.2 °F | 1168.4 in. |
| December | -26.3 °F | -21.4 °F | 0 in. |
| Annual | 27.3 °F | 46.3 °F | 32.67 in. |
| Average First Frost Date | Sep.11 - Sep. 20 |
| Average Last Frost Date | May 21 - May 31 |
| Average Days With Frost | Over 180 Days |
| Plant Hardiness Zone | Zone 2b : -45°F to -40°F |
| Current Drought Conditions | Normal |