Climate almanac
New Castle
Indiana, United States · 39.93°, -85.37°
What is the weather like in New Castle in December?
In December, New Castle is typically 42°F (6°C) during the day and 28°F (-2°C) at night. The month brings about 3.1 in (79 mm) of precipitation in total. Snowfall averages about 2.8 in (70 mm) over the month.
- Average high42°F (6°C)
- Average low28°F (-2°C)
- Precipitation3.1 in (79 mm)
- Clear or mostly clear days6
- Snowfall2.8 in (70 mm)
- Based on2016-2025 daily ERA5 reanalysis data (10-year normals)