Climate almanac

Denison

Iowa, United States · 42.02°, -95.36°

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What is the weather like in Denison in January?

In January, Denison is typically 31°F (-1°C) during the day and 16°F (-9°C) at night. The month brings about 1.2 in (32 mm) of precipitation in total. Snowfall averages about 6.5 in (166 mm) over the month.

  • Average high31°F (-1°C)
  • Average low16°F (-9°C)
  • Precipitation1.2 in (32 mm)
  • Clear or mostly clear days8
  • Snowfall6.5 in (166 mm)
  • Based on2016-2025 daily ERA5 reanalysis data (10-year normals)