Climate almanac
Mount Vernon
Indiana, United States · 40.67°, -85.82°
What is the weather like in Mount Vernon in December?
In December, Mount Vernon is typically 41°F (5°C) during the day and 28°F (-2°C) at night. The month brings about 2.7 in (69 mm) of precipitation in total. Snowfall averages about 3.0 in (77 mm) over the month.
- Average high41°F (5°C)
- Average low28°F (-2°C)
- Precipitation2.7 in (69 mm)
- Clear or mostly clear days5
- Snowfall3.0 in (77 mm)
- Based on2016-2025 daily ERA5 reanalysis data (10-year normals)