Climate almanac
Monticello
Indiana, United States · 40.75°, -86.76°
What is the weather like in Monticello in December?
In December, Monticello is typically 42°F (5°C) during the day and 28°F (-2°C) at night. The month brings about 2.6 in (66 mm) of precipitation in total. Snowfall averages about 2.7 in (69 mm) over the month.
- Average high42°F (5°C)
- Average low28°F (-2°C)
- Precipitation2.6 in (66 mm)
- Clear or mostly clear days6
- Snowfall2.7 in (69 mm)
- Based on2016-2025 daily ERA5 reanalysis data (10-year normals)