December in Jiutai averages a daily high of -7.3°C with nights around -16.2°C. Expect roughly 4.3 wet days totalling 7.6mm. A hard month to visit for comfort alone.
Across the year, the best time to visit Jiutai is May.
Based on CHANGCHUN, CH (56.4km), 1995–2024. 18 years of December data.