Climate almanac
Peoria
Illinois, United States · 40.69°, -89.59°
What is the weather like in Peoria in December?
In December, Peoria is typically 41°F (5°C) during the day and 27°F (-3°C) at night. The month brings about 2.3 in (58 mm) of precipitation in total. Snowfall averages about 2.5 in (64 mm) over the month.
- Average high41°F (5°C)
- Average low27°F (-3°C)
- Precipitation2.3 in (58 mm)
- Clear or mostly clear days7
- Snowfall2.5 in (64 mm)
- Based on2016-2025 daily ERA5 reanalysis data (10-year normals)