About Rockcliffe Smythe, 08's Climate & Weather History

With a population of around 22,200, Rockcliffe Smythe sits in Ontario, Canada. The city operates in the Eastern Time Zone.

In 2025, Rockcliffe Smythe recorded an average annual temperature of 48°F. The hottest temperatures reached 101°F in June; the coolest were -8°F in March. Total precipitation for the year was 31 inches, with the wettest month being May. Snowfall for the year totaled approximately 18 inches.