In April, Knoxville typically sees daytime highs of 21.4°C and overnight lows around 7.7°C. Compared to the annual average high of 20.6°C, April runs +0.8°C.
April in Knoxville averages a daytime high of 21.4°C and an overnight low of 7.7°C.
April runs +0.8°C compared to Knoxville's annual average high of 20.6°C, ranking #7 of 12 months by warmth.
Plan for daytime highs near 21.4°C and cooler evenings around 7.7°C.