With a population of around 3,600, Greenhills sits in Ohio, United States. The city operates in the Eastern Time Zone.
In 2025, Greenhills recorded an average annual temperature of 55°F — about 0.8°F above the 30-year normal of 54°F. The hottest day reached 97°F in June; the coldest was -6°F in January. Total precipitation was 47 inches (wetter than usual). The wettest month was April.
View current conditions and forecast for Greenhills · More cities in Ohio