April in Danbury averages a daily high of 16°C with nights around 3.7°C. Expect roughly 12 wet days totalling 111.9mm. Generally workable, with some weather to plan around.
Across the year, the best time to visit Danbury is May–June.
Based on DANBURY, CT US (2.8km), 1995–2024. 25 years of April data.