In December, Ames typically sees daytime highs of 0.4°C and overnight lows around -9.5°C. Compared to the annual average high of 14.8°C, December runs -14.4°C.
December in Ames averages a daytime high of 0.4°C and an overnight low of -9.5°C.
December runs -14.4°C compared to Ames's annual average high of 14.8°C, ranking #11 of 12 months by warmth.
Plan for daytime highs near 0.4°C and cooler evenings around -9.5°C.