About Mississauga, 08's Climate & Weather History

Mississauga is a city of approximately 718,000 people in Ontario, Canada. Located in the Eastern Time Zone at 43.6°N latitude.

In 2025, Mississauga recorded an average annual temperature of 48°F. The hottest temperatures reached 100°F in June; the coolest were -9°F in March. Total precipitation for the year was 29 inches, with the wettest month being May. Snowfall for the year totaled approximately 19 inches.