Climate almanac
Troy
Illinois, United States · 38.73°, -89.88°
What is the weather like in Troy in January?
In January, Troy is typically 40°F (5°C) during the day and 26°F (-3°C) at night. The month brings about 3.1 in (80 mm) of precipitation in total. Snowfall averages about 4.5 in (115 mm) over the month.
- Average high40°F (5°C)
- Average low26°F (-3°C)
- Precipitation3.1 in (80 mm)
- Clear or mostly clear days8
- Snowfall4.5 in (115 mm)
- Based on2016-2025 daily ERA5 reanalysis data (10-year normals)