Climate almanac
New Haven
Connecticut, United States · 41.31°, -72.93°
What is the weather like in New Haven in December?
In December, New Haven is typically 43°F (6°C) during the day and 34°F (1°C) at night. The month brings about 6.2 in (158 mm) of precipitation in total. Snowfall averages about 4.0 in (101 mm) over the month.
- Average high43°F (6°C)
- Average low34°F (1°C)
- Precipitation6.2 in (158 mm)
- Clear or mostly clear days10
- Snowfall4.0 in (101 mm)
- Based on2016-2025 daily ERA5 reanalysis data (10-year normals)