Hamden Weather Forecast

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Last Updated: January 2, 2026

Hamden is a town in New Haven County, Connecticut, located along the Quinnipiac River.


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Summary

The climate in Hamden is characterized by hot summers and cold winters, with average temperatures ranging from 20°F in winter to 85°F in summer. The town is home to several important hydrology constituents, including the Sleeping Giant State Park and Lake Whitney. Outdoor activities in Hamden include hiking, fishing, and picnicking at Sleeping Giant State Park, as well as swimming, boating, and fishing in Lake Whitney. The town also boasts several public parks and recreational areas, including Brooksvale Park, which features a nature center, farm animals, and hiking trails.

       

Weather Forecast

Hamden receives approximately 1297mm of rain per year, with humidity levels near 75% and air temperatures averaging around 11°C. Hamden has a plant hardyness factor of 6, meaning plants and agriculture in this region thrive during a short period during spring and early summer. Most plants will die off during the colder winter months.