Climate almanac
Cohasset
Massachusetts, United States · 42.24°, -70.80°
What is the weather like in Cohasset in December?
In December, Cohasset is typically 43°F (6°C) during the day and 34°F (1°C) at night. The month brings about 5.7 in (145 mm) of precipitation in total. Snowfall averages about 3.9 in (100 mm) over the month.
- Average high43°F (6°C)
- Average low34°F (1°C)
- Precipitation5.7 in (145 mm)
- Clear or mostly clear days10
- Snowfall3.9 in (100 mm)
- Based on2016-2025 daily ERA5 reanalysis data (10-year normals)