With a population of around 32,700, LaSalle sits in Ontario, Canada. The city operates in the Eastern Time Zone.
In 2025, LaSalle recorded an average annual temperature of 50°F — about 0.6°F below the 30-year normal of 51°F. The hottest day reached 96°F in June; the coldest was -10°F in January. Total precipitation was 36 inches (wetter than usual). The wettest month was April.
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