In December, Biysk typically sees daytime highs of -9.9°C and overnight lows around -19.9°C. Compared to the annual average high of 7.6°C, December runs -17.5°C.
December in Biysk averages a daytime high of -9.9°C and an overnight low of -19.9°C.
December runs -17.5°C compared to Biysk's annual average high of 7.6°C, ranking #10 of 12 months by warmth.
Plan for daytime highs near -9.9°C and cooler evenings around -19.9°C.