May in Hamden averages a daily high of 21°C with nights around 9°C. Expect roughly 11.8 wet days totalling 103.2mm. Comfortable conditions for being outdoors all day.
Across the year, the best time to visit Hamden is May–June.
Based on MOUNT CARMEL, CT US (1.4km), 1995–2024. 24 years of May data.