In December, Kostyantynivka typically sees daytime highs of -0.1°C and overnight lows around -5.6°C. Compared to the annual average high of 12.8°C, December runs -12.9°C.
December in Kostyantynivka averages a daytime high of -0.1°C and an overnight low of -5.6°C.
December runs -12.9°C compared to Kostyantynivka's annual average high of 12.8°C, ranking #10 of 12 months by warmth.
Plan for daytime highs near -0.1°C and cooler evenings around -5.6°C.