March in Hamden averages a daily high of 9°C with nights around -2°C. Expect roughly 9.1 wet days totalling 104.7mm. Demanding conditions — pack for it and plan indoor options.
Across the year, the best time to visit Hamden is May–June.
Based on MOUNT CARMEL, CT US (1.4km), 1995–2024. 25 years of March data.