In March, Green Bay typically sees daytime highs of 3.8°C and overnight lows around -6.7°C. Compared to the annual average high of 12.4°C, March runs -8.6°C.
March in Green Bay averages a daytime high of 3.8°C and an overnight low of -6.7°C.
March runs -8.6°C compared to Green Bay's annual average high of 12.4°C, ranking #9 of 12 months by warmth.
Plan for daytime highs near 3.8°C and cooler evenings around -6.7°C.