Climate almanac
Greater Upper Marlboro
Maryland, United States · 38.83°, -76.75°
What is the weather like in Greater Upper Marlboro in December?
In December, Greater Upper Marlboro is typically 49°F (9°C) during the day and 35°F (2°C) at night. The month brings about 3.9 in (99 mm) of precipitation in total. Snowfall averages about 1.1 in (27 mm) over the month.
- Average high49°F (9°C)
- Average low35°F (2°C)
- Precipitation3.9 in (99 mm)
- Clear or mostly clear days10
- Snowfall1.1 in (27 mm)
- Based on2016-2025 daily ERA5 reanalysis data (10-year normals)