In December, Surprise typically sees daytime highs of 19.1°C and overnight lows around 4.1°C. Compared to the annual average high of 29.7°C, December runs -10.6°C.
December in Surprise averages a daytime high of 19.1°C and an overnight low of 4.1°C.
December runs -10.6°C compared to Surprise's annual average high of 29.7°C, ranking #11 of 12 months by warmth.
Plan for daytime highs near 19.1°C and cooler evenings around 4.1°C.