In December, Evanston typically sees daytime highs of 1.4°C and overnight lows around -4.8°C. Compared to the annual average high of 13.3°C, December runs -11.9°C.
December in Evanston averages a daytime high of 1.4°C and an overnight low of -4.8°C.
December runs -11.9°C compared to Evanston's annual average high of 13.3°C, ranking #10 of 12 months by warmth.
Plan for daytime highs near 1.4°C and cooler evenings around -4.8°C.