December in Troitsk averages a daily high of -7.7°C with nights around -16.3°C. Expect roughly 10.8 wet days totalling 23.2mm. A hard month to visit for comfort alone.
Across the year, the best time to visit Troitsk is May–September.
Based on TROITSK, RS (2.2km), 1995–2024. 24 years of December data.