In December, Ust'-Ilimsk typically sees daytime highs of -18.5°C and overnight lows around -28.1°C. Compared to the annual average high of 2.7°C, December runs -21.2°C.
December in Ust'-Ilimsk averages a daytime high of -18.5°C and an overnight low of -28.1°C.
December runs -21.2°C compared to Ust'-Ilimsk's annual average high of 2.7°C, ranking #11 of 12 months by warmth.
Plan for daytime highs near -18.5°C and cooler evenings around -28.1°C.