In October, Dayton typically sees daytime highs of 18.6°C and overnight lows around 5.5°C. Compared to the annual average high of 16.6°C, October runs +1.9°C.
October in Dayton averages a daytime high of 18.6°C and an overnight low of 5.5°C.
October runs +1.9°C compared to Dayton's annual average high of 16.6°C, ranking #6 of 12 months by warmth.
Plan for daytime highs near 18.6°C and cooler evenings around 5.5°C.