In December, Lewisville typically sees daytime highs of 14.4°C and overnight lows around 2.6°C. Compared to the annual average high of 24.6°C, December runs -10.1°C.
December in Lewisville averages a daytime high of 14.4°C and an overnight low of 2.6°C.
December runs -10.1°C compared to Lewisville's annual average high of 24.6°C, ranking #11 of 12 months by warmth.
Plan for daytime highs near 14.4°C and cooler evenings around 2.6°C.