With a population of around 13,400, Monroe sits in Ohio, United States. The city operates in the Eastern Time Zone.
In 2025, Monroe recorded an average annual temperature of 54°F — right at the 30-year normal of 54°F. The hottest day reached 95°F in June; the coldest was -6°F in January. Total precipitation was 45 inches (wetter than usual). The wettest month was April.
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