In April, Oshkosh typically sees daytime highs of 12.9°C and overnight lows around 1.3°C. Compared to the annual average high of 12.8°C, April runs +0.1°C.
April in Oshkosh averages a daytime high of 12.9°C and an overnight low of 1.3°C.
April runs +0.1°C compared to Oshkosh's annual average high of 12.8°C, ranking #7 of 12 months by warmth.
Plan for daytime highs near 12.9°C and cooler evenings around 1.3°C.