In May, Casa Grande typically sees daytime highs of 34.3°C and overnight lows around 14.3°C. Compared to the annual average high of 30.0°C, May runs +4.3°C.
May in Casa Grande averages a daytime high of 34.3°C and an overnight low of 14.3°C.
May runs +4.3°C compared to Casa Grande's annual average high of 30.0°C, ranking #5 of 12 months by warmth.
Plan for daytime highs near 34.3°C and cooler evenings around 14.3°C.