In May, Fairfield typically sees daytime highs of 21.0°C and overnight lows around 8.7°C. Compared to the annual average high of 15.8°C, May runs +5.2°C.
May in Fairfield averages a daytime high of 21.0°C and an overnight low of 8.7°C.
May runs +5.2°C compared to Fairfield's annual average high of 15.8°C, ranking #5 of 12 months by warmth.
Plan for daytime highs near 21.0°C and cooler evenings around 8.7°C.