Climate almanac
Salem
Illinois, United States · 38.63°, -88.95°
What is the weather like in Salem in December?
In December, Salem is typically 46°F (8°C) during the day and 32°F (0°C) at night. The month brings about 3.0 in (77 mm) of precipitation in total. Snowfall averages about 1.7 in (44 mm) over the month.
- Average high46°F (8°C)
- Average low32°F (0°C)
- Precipitation3.0 in (77 mm)
- Clear or mostly clear days8
- Snowfall1.7 in (44 mm)
- Based on2016-2025 daily ERA5 reanalysis data (10-year normals)