Climate almanac

Vandalia

Illinois, United States · 38.96°, -89.09°

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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)