Climate almanac
Mount Zion
Illinois, United States · 39.77°, -88.87°
What is the weather like in Mount Zion in December?
In December, Mount Zion is typically 43°F (6°C) during the day and 29°F (-2°C) at night. The month brings about 2.4 in (62 mm) of precipitation in total. Snowfall averages about 2.1 in (54 mm) over the month.
- Average high43°F (6°C)
- Average low29°F (-2°C)
- Precipitation2.4 in (62 mm)
- Clear or mostly clear days7
- Snowfall2.1 in (54 mm)
- Based on2016-2025 daily ERA5 reanalysis data (10-year normals)