With a population of around 10,100, Penetanguishene sits in Ontario, Canada. The city operates in the Eastern Time Zone.
In 2025, Penetanguishene recorded an average annual temperature of 45°F. The hottest temperatures reached 93°F in July; the coolest were -8°F in January. Total precipitation for the year was 41 inches, with the wettest month being March. Snowfall for the year totaled approximately 33 inches.
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