January in Hamden averages a daily high of 3.1°C with nights around -7°C. Expect roughly 9.8 wet days totalling 90.7mm. A hard month to visit for comfort alone.
Across the year, the best time to visit Hamden is May–June.
Based on MOUNT CARMEL, CT US (1.4km), 1995–2024. 23 years of January data.