Marsoui, Quebec climate data is summarized below. Average annual temperatures range from 0.7 °C (low) to 7.1 °C (high). Annual precipitation averages 653 Millimeters. Marsoui is located in USDA Plant Hardiness Zone 4a. The growing season typically runs from the last frost around May 1 - May 10 through the first frost around Oct. 1 - Oct. 10.
| Month | Avg. Low | Avg. High | Avg. Precip |
|---|---|---|---|
| January | -12.91 °C | -6.48 °C | 0 mm |
| February | -13.2 °C | -6.48 °C | 0 mm |
| March | -9.86 °C | -2.53 °C | 0 mm |
| April | -2.05 °C | 3.7 °C | 44 mm |
| May | 4.14 °C | 11.02 °C | 86 mm |
| June | 10.2 °C | 17.88 °C | 82 mm |
| July | 14 °C | 21.07 °C | 101 mm |
| August | 13.71 °C | 20.5 °C | 85 mm |
| September | 9.34 °C | 15.82 °C | 93 mm |
| October | 4.19 °C | 9.51 °C | 90 mm |
| November | -1.32 °C | 3.64 °C | 65 mm |
| December | -8.22 °C | -2.81 °C | 7 mm |
| Annual | 0.7 °C | 7.1 °C | 653 mm |
| Average First Frost Date | Oct. 1 - Oct. 10 |
| Average Last Frost Date | May 1 - May 10 |
| Average Days With Frost | Over 180 Days |
| Plant Hardiness Zone | Zone 4a : -34.4°C to -31.7°C |
| Current Drought Conditions | Normal |