Climate almanac
Marshalltown
Iowa, United States · 42.05°, -92.91°
What is the weather like in Marshalltown in December?
In December, Marshalltown is typically 37°F (3°C) during the day and 22°F (-6°C) at night. The month brings about 1.6 in (40 mm) of precipitation in total. Snowfall averages about 4.0 in (100 mm) over the month.
- Average high37°F (3°C)
- Average low22°F (-6°C)
- Precipitation1.6 in (40 mm)
- Clear or mostly clear days8
- Snowfall4.0 in (100 mm)
- Based on2016-2025 daily ERA5 reanalysis data (10-year normals)