Climate almanac
Ottumwa
Iowa, United States · 41.02°, -92.41°
What is the weather like in Ottumwa in December?
In December, Ottumwa is typically 41°F (5°C) during the day and 25°F (-4°C) at night. The month brings about 1.9 in (47 mm) of precipitation in total. Snowfall averages about 2.9 in (73 mm) over the month.
- Average high41°F (5°C)
- Average low25°F (-4°C)
- Precipitation1.9 in (47 mm)
- Clear or mostly clear days9
- Snowfall2.9 in (73 mm)
- Based on2016-2025 daily ERA5 reanalysis data (10-year normals)