In August, Dayton typically sees daytime highs of 28.7°C and overnight lows around 16.0°C. Compared to the annual average high of 16.6°C, August runs +12.0°C.
August in Dayton averages a daytime high of 28.7°C and an overnight low of 16.0°C.
August runs +12.0°C compared to Dayton's annual average high of 16.6°C, ranking #2 of 12 months by warmth.
Plan for daytime highs near 28.7°C and cooler evenings around 16.0°C.