Baie-Comeau, Quebec climate data is summarized below. Average annual temperatures range from 30.9 °F (low) to 43.9 °F (high). Annual precipitation averages 30.5 Inches. Baie-Comeau is located in USDA Plant Hardiness Zone 4a. The growing season typically runs from the last frost around May 21 - May 31 through the first frost around Sep. 21 - Sep. 30.
| Month | Avg. Low | Avg. High | Avg. Precip |
|---|---|---|---|
| January | -26.5 °F | -21.9 °F | 0 in. |
| February | -26 °F | -21.3 °F | 0 in. |
| March | -23.7 °F | -18.9 °F | 0 in. |
| April | -18.8 °F | -15.1 °F | 1676.4 in. |
| May | -15.5 °F | -11.6 °F | 2032 in. |
| June | -12.6 °F | -8.6 °F | 2489.2 in. |
| July | -11 °F | -6.8 °F | 2387.6 in. |
| August | -10.8 °F | -7 °F | 2413 in. |
| September | -13.5 °F | -9.5 °F | 2641.6 in. |
| October | -16.1 °F | -12.7 °F | 2870.2 in. |
| November | -19.1 °F | -16.1 °F | 2438.4 in. |
| December | -23.6 °F | -19.8 °F | 736.6 in. |
| Annual | 30.9 °F | 43.9 °F | 30.51 in. |
| Average First Frost Date | Sep. 21 - Sep. 30 |
| Average Last Frost Date | May 21 - May 31 |
| Average Days With Frost | Over 180 Days |
| Plant Hardiness Zone | Zone 4a : -30°F to -25°F |
| Current Drought Conditions | Normal |