Climate almanac

Freeport

Illinois, United States · 42.30°, -89.62°

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What is the weather like in Freeport in December?

In December, Freeport is typically 36°F (2°C) during the day and 24°F (-5°C) at night. The month brings about 2.1 in (54 mm) of precipitation in total. Snowfall averages about 5.1 in (131 mm) over the month.

  • Average high36°F (2°C)
  • Average low24°F (-5°C)
  • Precipitation2.1 in (54 mm)
  • Clear or mostly clear days6
  • Snowfall5.1 in (131 mm)
  • Based on2016-2025 daily ERA5 reanalysis data (10-year normals)