Climate almanac
Sunbury
Pennsylvania, United States · 40.86°, -76.79°
What is the weather like in Sunbury in December?
In December, Sunbury is typically 42°F (5°C) during the day and 30°F (-1°C) at night. The month brings about 3.6 in (90 mm) of precipitation in total. Snowfall averages about 5.1 in (129 mm) over the month.
- Average high42°F (5°C)
- Average low30°F (-1°C)
- Precipitation3.6 in (90 mm)
- Clear or mostly clear days5
- Snowfall5.1 in (129 mm)
- Based on2016-2025 daily ERA5 reanalysis data (10-year normals)