About Fort Simpson, 13's Climate & Weather History

Fort Simpson, in Northwest Territories, Canada, is home to roughly 1,100 people in the America/Edmonton time zone at 61.9°N latitude.

In 2025, Fort Simpson recorded an average annual temperature of 30°F. The hottest temperatures reached 87°F in July; the coolest were -39°F in February. Total precipitation for the year was 13 inches, with the wettest month being August. Snowfall for the year totaled approximately 12 inches.