Grimsby is a city of approximately 27,300 people in Ontario, Canada. Located in the Eastern Time Zone at 43.2°N latitude.
In 2025, Grimsby recorded an average annual temperature of 49°F. The hottest temperatures reached 94°F in June; the coolest were 1°F in January. Total precipitation for the year was 30 inches, with the wettest month being May. Snowfall for the year totaled approximately 15 inches.
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