In December, Wilmington typically sees daytime highs of 14.1°C and overnight lows around 3.7°C. Compared to the annual average high of 21.9°C, December runs -7.8°C.
December in Wilmington averages a daytime high of 14.1°C and an overnight low of 3.7°C.
December runs -7.8°C compared to Wilmington's annual average high of 21.9°C, ranking #10 of 12 months by warmth.
Plan for daytime highs near 14.1°C and cooler evenings around 3.7°C.