In October, New Haven typically sees daytime highs of 17.6°C and overnight lows around 6.4°C. Compared to the annual average high of 15.4°C, October runs +2.2°C.
October in New Haven averages a daytime high of 17.6°C and an overnight low of 6.4°C.
October runs +2.2°C compared to New Haven's annual average high of 15.4°C, ranking #6 of 12 months by warmth.
Plan for daytime highs near 17.6°C and cooler evenings around 6.4°C.