In July, Dayton typically sees daytime highs of 29.3°C and overnight lows around 16.9°C. Compared to the annual average high of 16.6°C, July runs +12.7°C.
July in Dayton averages a daytime high of 29.3°C and an overnight low of 16.9°C.
July runs +12.7°C compared to Dayton's annual average high of 16.6°C, ranking #1 of 12 months by warmth.
Plan for daytime highs near 29.3°C and cooler evenings around 16.9°C.