About Slave Lake, 01's Climate & Weather History

Slave Lake, in Alberta, Canada, is home to roughly 6,800 people in the America/Edmonton time zone at 55.3°N latitude.

In 2025, Slave Lake recorded an average annual temperature of 38°F. The hottest temperatures reached 87°F in August; the coolest were -30°F in February. Total precipitation for the year was 21 inches, with the wettest month being December. Snowfall for the year totaled approximately 25 inches.