In May, Fairfield typically sees daytime highs of 23.8°C and overnight lows around 9.4°C. Compared to the annual average high of 21.5°C, May runs +2.3°C.
May in Fairfield averages a daytime high of 23.8°C and an overnight low of 9.4°C.
May runs +2.3°C compared to Fairfield's annual average high of 21.5°C, ranking #6 of 12 months by warmth.
Plan for daytime highs near 23.8°C and cooler evenings around 9.4°C.