About Gananoque, 08's Climate & Weather History

Gananoque is a city of approximately 5,500 people in Ontario, Canada. Located in the Eastern Time Zone at 44.3°N latitude.

In 2025, Gananoque recorded an average annual temperature of 47°F — about 1.6°F above the 30-year normal of 45°F. The hottest day reached 90°F in June; the coldest was -5°F in March. Total precipitation was 35 inches (drier than usual). The wettest month was March.