January in Danbury averages a daily high of 2.5°C with nights around -6.3°C. Expect roughly 11.9 wet days totalling 96.7mm. A hard month to visit for comfort alone.
Across the year, the best time to visit Danbury is May–June.
Based on DANBURY, CT US (2.8km), 1995–2024. 25 years of January data.