In May, Waterbury typically sees daytime highs of 20.5°C and overnight lows around 7.3°C. Compared to the annual average high of 14.6°C, May runs +5.8°C.
May in Waterbury averages a daytime high of 20.5°C and an overnight low of 7.3°C.
May runs +5.8°C compared to Waterbury's annual average high of 14.6°C, ranking #5 of 12 months by warmth.
Plan for daytime highs near 20.5°C and cooler evenings around 7.3°C.