In December, Des Moines typically sees daytime highs of 1.6°C and overnight lows around -8.2°C. Compared to the annual average high of 15.7°C, December runs -14.1°C.
December in Des Moines averages a daytime high of 1.6°C and an overnight low of -8.2°C.
December runs -14.1°C compared to Des Moines's annual average high of 15.7°C, ranking #11 of 12 months by warmth.
Plan for daytime highs near 1.6°C and cooler evenings around -8.2°C.