Climate almanac
Vandalia
Illinois, United States · 38.96°, -89.09°
What is the weather like in Vandalia in January?
In January, Vandalia is typically 39°F (4°C) during the day and 26°F (-4°C) at night. The month brings about 3.2 in (82 mm) of precipitation in total. Snowfall averages about 3.9 in (100 mm) over the month.
- Average high39°F (4°C)
- Average low26°F (-4°C)
- Precipitation3.2 in (82 mm)
- Clear or mostly clear days7
- Snowfall3.9 in (100 mm)
- Based on2016-2025 daily ERA5 reanalysis data (10-year normals)