In December, Oak Lawn typically sees daytime highs of 1.8°C and overnight lows around -6.1°C. Compared to the annual average high of 15.2°C, December runs -13.4°C.
December in Oak Lawn averages a daytime high of 1.8°C and an overnight low of -6.1°C.
December runs -13.4°C compared to Oak Lawn's annual average high of 15.2°C, ranking #11 of 12 months by warmth.
Plan for daytime highs near 1.8°C and cooler evenings around -6.1°C.