In May, Ankeny typically sees daytime highs of 22.9°C and overnight lows around 10.2°C. Compared to the annual average high of 15.7°C, May runs +7.2°C.
May in Ankeny averages a daytime high of 22.9°C and an overnight low of 10.2°C.
May runs +7.2°C compared to Ankeny's annual average high of 15.7°C, ranking #5 of 12 months by warmth.
Plan for daytime highs near 22.9°C and cooler evenings around 10.2°C.