Lac-Saint-Charles, Quebec climate data is summarized below. Average annual temperatures range from 31.9 °F (low) to 49 °F (high). Annual precipitation averages 38.2 Inches. Lac-Saint-Charles is located in USDA Plant Hardiness Zone 4b. The growing season typically runs from the last frost around May 11 - May 20 through the first frost around Sep. 21 - Sep. 30.
| Month | Avg. Low | Avg. High | Avg. Precip |
|---|---|---|---|
| January | -26.6 °F | -21.4 °F | 0 in. |
| February | -26.1 °F | -20.8 °F | 0 in. |
| March | -23 °F | -17.8 °F | 304.8 in. |
| April | -18.5 °F | -13.3 °F | 1752.6 in. |
| May | -14.7 °F | -8.4 °F | 2438.4 in. |
| June | -11.7 °F | -5.7 °F | 3276.6 in. |
| July | -10.1 °F | -4.2 °F | 4064 in. |
| August | -10.5 °F | -4.7 °F | 3784.6 in. |
| September | -13.1 °F | -7.4 °F | 3302 in. |
| October | -16.1 °F | -11.5 °F | 3429 in. |
| November | -19.3 °F | -15.5 °F | 2057.4 in. |
| December | -23.9 °F | -19.7 °F | 254 in. |
| Annual | 31.9 °F | 49 °F | 38.23 in. |
| Average First Frost Date | Sep. 21 - Sep. 30 |
| Average Last Frost Date | May 11 - May 20 |
| Average Days With Frost | 150-180 Days |
| Plant Hardiness Zone | Zone 4b : -25°F to -20°F |
| Current Drought Conditions | Normal |