In January, West Haven typically sees daytime highs of 2.5°C and overnight lows around -6.7°C. Compared to the annual average high of 15.4°C, January runs -12.9°C.
January in West Haven averages a daytime high of 2.5°C and an overnight low of -6.7°C.
January runs -12.9°C compared to West Haven's annual average high of 15.4°C, ranking #12 of 12 months by warmth.
Plan for daytime highs near 2.5°C and cooler evenings around -6.7°C.