Climate almanac
Johnsburg
Illinois, United States · 42.38°, -88.24°
What is the weather like in Johnsburg in January?
In January, Johnsburg is typically 31°F (-1°C) during the day and 19°F (-7°C) at night. The month brings about 2.4 in (61 mm) of precipitation in total. Snowfall averages about 9.9 in (251 mm) over the month.
- Average high31°F (-1°C)
- Average low19°F (-7°C)
- Precipitation2.4 in (61 mm)
- Clear or mostly clear days6
- Snowfall9.9 in (251 mm)
- Based on2016-2025 daily ERA5 reanalysis data (10-year normals)