In May, Cincinnati typically sees daytime highs of 23.9°C and overnight lows around 10.9°C. Compared to the annual average high of 18.1°C, May runs +5.8°C.
May in Cincinnati averages a daytime high of 23.9°C and an overnight low of 10.9°C.
May runs +5.8°C compared to Cincinnati's annual average high of 18.1°C, ranking #5 of 12 months by warmth.
Plan for daytime highs near 23.9°C and cooler evenings around 10.9°C.