Climate almanac
Macomb
Illinois, United States · 40.46°, -90.67°
What is the weather like in Macomb in December?
In December, Macomb is typically 42°F (5°C) during the day and 27°F (-3°C) at night. The month brings about 2.1 in (54 mm) of precipitation in total. Snowfall averages about 2.4 in (61 mm) over the month.
- Average high42°F (5°C)
- Average low27°F (-3°C)
- Precipitation2.1 in (54 mm)
- Clear or mostly clear days8
- Snowfall2.4 in (61 mm)
- Based on2016-2025 daily ERA5 reanalysis data (10-year normals)