May in Danbury averages a daily high of 21.8°C with nights around 9.1°C. Expect roughly 13.4 wet days totalling 114mm. 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 May data.