In December, Jiayuguan typically sees daytime highs of -0.8°C and overnight lows around -12.9°C. Compared to the annual average high of 15.3°C, December runs -16.1°C.
December in Jiayuguan averages a daytime high of -0.8°C and an overnight low of -12.9°C.
December runs -16.1°C compared to Jiayuguan's annual average high of 15.3°C, ranking #11 of 12 months by warmth.
Plan for daytime highs near -0.8°C and cooler evenings around -12.9°C.