Climate almanac
Greenville
Illinois, United States · 38.89°, -89.41°
What is the weather like in Greenville in January?
In January, Greenville is typically 39°F (4°C) during the day and 26°F (-4°C) at night. The month brings about 3.1 in (80 mm) of precipitation in total. Snowfall averages about 4.3 in (108 mm) over the month.
- Average high39°F (4°C)
- Average low26°F (-4°C)
- Precipitation3.1 in (80 mm)
- Clear or mostly clear days7
- Snowfall4.3 in (108 mm)
- Based on2016-2025 daily ERA5 reanalysis data (10-year normals)