In October, Fairfield typically sees daytime highs of 17.7°C and overnight lows around 6.2°C. Compared to the annual average high of 15.8°C, October runs +1.9°C.
October in Fairfield averages a daytime high of 17.7°C and an overnight low of 6.2°C.
October runs +1.9°C compared to Fairfield's annual average high of 15.8°C, ranking #6 of 12 months by warmth.
Plan for daytime highs near 17.7°C and cooler evenings around 6.2°C.