In April, Allentown typically sees daytime highs of 16.2°C and overnight lows around 3.5°C. Compared to the annual average high of 16.2°C, April runs -0.1°C.
April in Allentown averages a daytime high of 16.2°C and an overnight low of 3.5°C.
April runs -0.1°C compared to Allentown's annual average high of 16.2°C, ranking #7 of 12 months by warmth.
Plan for daytime highs near 16.2°C and cooler evenings around 3.5°C.