In December, Barnaul typically sees daytime highs of -10.4°C and overnight lows around -20.1°C. Compared to the annual average high of 6.8°C, December runs -17.2°C.
December in Barnaul averages a daytime high of -10.4°C and an overnight low of -20.1°C.
December runs -17.2°C compared to Barnaul's annual average high of 6.8°C, ranking #10 of 12 months by warmth.
Plan for daytime highs near -10.4°C and cooler evenings around -20.1°C.