In July, New Haven typically sees daytime highs of 27.8°C and overnight lows around 16.7°C. Compared to the annual average high of 15.4°C, July runs +12.4°C.
July in New Haven averages a daytime high of 27.8°C and an overnight low of 16.7°C.
July runs +12.4°C compared to New Haven's annual average high of 15.4°C, ranking #1 of 12 months by warmth.
Plan for daytime highs near 27.8°C and cooler evenings around 16.7°C.