With a population of around 6,600, Mount Vernon sits in Indiana, United States. The city operates in the Central Time Zone.
In 2025, Mount Vernon recorded an average annual temperature of 57°F — right at the 30-year normal of 57°F. The hottest day reached 92°F in August; the coldest was 2°F in January. Total precipitation was 47 inches (near normal). Snowfall totaled 5 inches, below the 11-inch average. The wettest month was April.
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