In April, Mount Vernon typically sees daytime highs of 15.4°C and overnight lows around 4.8°C. Compared to the annual average high of 16.1°C, April runs -0.7°C.
April in Mount Vernon averages a daytime high of 15.4°C and an overnight low of 4.8°C.
April runs -0.7°C compared to Mount Vernon's annual average high of 16.1°C, ranking #7 of 12 months by warmth.
Plan for daytime highs near 15.4°C and cooler evenings around 4.8°C.