In December, Cicero typically sees daytime highs of 1.2°C and overnight lows around -6.3°C. Compared to the annual average high of 14.7°C, December runs -13.4°C.
December in Cicero averages a daytime high of 1.2°C and an overnight low of -6.3°C.
December runs -13.4°C compared to Cicero's annual average high of 14.7°C, ranking #11 of 12 months by warmth.
Plan for daytime highs near 1.2°C and cooler evenings around -6.3°C.