Climate almanac
Lebanon
Pennsylvania, United States · 40.34°, -76.41°
What is the weather like in Lebanon in December?
In December, Lebanon is typically 44°F (6°C) during the day and 31°F (0°C) at night. The month brings about 3.9 in (99 mm) of precipitation in total. Snowfall averages about 3.3 in (83 mm) over the month.
- Average high44°F (6°C)
- Average low31°F (0°C)
- Precipitation3.9 in (99 mm)
- Clear or mostly clear days6
- Snowfall3.3 in (83 mm)
- Based on2016-2025 daily ERA5 reanalysis data (10-year normals)