December in Bristol averages a daily high of 5.4°C with nights around -4.7°C. Expect roughly 11.4 wet days totalling 129.5mm. A hard month to visit for comfort alone.
Across the year, the best time to visit Bristol is May–June.
Based on BURLINGTON, CT US (13.7km), 1995–2024. 28 years of December data.