About Geneva, OH's Climate & Weather History

With a population of around 6,400, Geneva sits in Ohio, United States. The city operates in the Eastern Time Zone.

In 2025, Geneva recorded an average annual temperature of 53°F — right at the 30-year normal of 53°F. The hottest day reached 92°F in June; the coldest was -12°F in January. Total precipitation was 44 inches (wetter than usual). The wettest month was June.