In December, Chelm typically sees daytime highs of 0.6°C and overnight lows around -4.2°C. Compared to the annual average high of 11.6°C, December runs -11.0°C.
December in Chelm averages a daytime high of 0.6°C and an overnight low of -4.2°C.
December runs -11.0°C compared to Chelm's annual average high of 11.6°C, ranking #10 of 12 months by warmth.
Plan for daytime highs near 0.6°C and cooler evenings around -4.2°C.