In May, Chelmsford typically sees daytime highs of 16.0°C and overnight lows around 7.8°C. Compared to the annual average high of 13.3°C, May runs +2.7°C.
May in Chelmsford averages a daytime high of 16.0°C and an overnight low of 7.8°C.
May runs +2.7°C compared to Chelmsford's annual average high of 13.3°C, ranking #5 of 12 months by warmth.
Plan for daytime highs near 16.0°C and cooler evenings around 7.8°C.