In May, Alpharetta typically sees daytime highs of 26.1°C and overnight lows around 13.1°C. Compared to the annual average high of 21.5°C, May runs +4.6°C.
May in Alpharetta averages a daytime high of 26.1°C and an overnight low of 13.1°C.
May runs +4.6°C compared to Alpharetta's annual average high of 21.5°C, ranking #5 of 12 months by warmth.
Plan for daytime highs near 26.1°C and cooler evenings around 13.1°C.