Sainte-Marthe-sur-le-Lac, Quebec climate data is summarized below. Average annual temperatures range from 2.9 °C (low) to 11.6 °C (high). Annual precipitation averages 797 Millimeters. Sainte-Marthe-sur-le-Lac is located in USDA Plant Hardiness Zone 5b. 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 | -12.84 °C | -4.9 °C | 8 mm |
| February | -12.55 °C | -4.33 °C | 9 mm |
| March | -6.41 °C | 2.28 °C | 38 mm |
| April | 2.02 °C | 11.48 °C | 87 mm |
| May | 9.02 °C | 19.45 °C | 78 mm |
| June | 14.2 °C | 23.9 °C | 104 mm |
| July | 16.89 °C | 26.41 °C | 132 mm |
| August | 16.14 °C | 25.56 °C | 93 mm |
| September | 11.34 °C | 21.13 °C | 67 mm |
| October | 5.5 °C | 13.44 °C | 100 mm |
| November | -0.72 °C | 6.25 °C | 57 mm |
| December | -8.22 °C | -1.82 °C | 24 mm |
| Annual | 2.9 °C | 11.6 °C | 797 mm |
| Average First Frost Date | Oct. 1 - Oct. 10 |
| Average Last Frost Date | May 1 - May 10 |
| Average Days With Frost | 150-180 Days |
| Plant Hardiness Zone | Zone 5b : -26.1°C to -23.3°C |
| Current Drought Conditions | Normal |