In May, Saint Peters typically sees daytime highs of 29.6°C and overnight lows around 23.9°C. Compared to the annual average high of 29.2°C, May runs +0.4°C.
May in Saint Peters averages a daytime high of 29.6°C and an overnight low of 23.9°C.
May runs +0.4°C compared to Saint Peters's annual average high of 29.2°C, ranking #6 of 12 months by warmth.
Plan for daytime highs near 29.6°C and cooler evenings around 23.9°C.