Sylvan Lake, Alberta climate data is summarized below. Average annual temperatures range from 25.8 °F (low) to 47 °F (high). Annual precipitation averages 19.9 Inches. Sylvan Lake is located in USDA Plant Hardiness Zone 3b. 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 | -26.2 °F | -20.9 °F | 0 in. |
| February | -25.9 °F | -19.9 °F | 0 in. |
| March | -23.3 °F | -17.5 °F | 0 in. |
| April | -19.9 °F | -13.4 °F | 914.4 in. |
| May | -16.5 °F | -8.9 °F | 2209.8 in. |
| June | -13.9 °F | -7 °F | 3225.8 in. |
| July | -12.5 °F | -5.2 °F | 2692.4 in. |
| August | -13.4 °F | -5.5 °F | 1778 in. |
| September | -15.9 °F | -7.7 °F | 1270 in. |
| October | -18.9 °F | -12.1 °F | 762 in. |
| November | -23 °F | -17.9 °F | 0 in. |
| December | -26.9 °F | -21.7 °F | 0 in. |
| Annual | 25.8 °F | 47 °F | 19.93 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 3b : -35°F to -30°F |
| Current Drought Conditions | Moderate Drought |