With a population of around 12,200, Blue Ash sits in Ohio, United States. The city operates in the Eastern Time Zone.
In 2025, Blue Ash recorded an average annual temperature of 55°F — right at the 30-year normal of 55°F. The hottest day reached 96°F in June; the coldest was -5°F in January. Total precipitation was 48 inches (wetter than usual). The wettest month was April.
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