In April, Green Bay typically sees daytime highs of 12.6°C and overnight lows around 0.7°C. Compared to the annual average high of 12.4°C, April runs +0.2°C.
April in Green Bay averages a daytime high of 12.6°C and an overnight low of 0.7°C.
April runs +0.2°C compared to Green Bay's annual average high of 12.4°C, ranking #7 of 12 months by warmth.
Plan for daytime highs near 12.6°C and cooler evenings around 0.7°C.