Climate almanac
Littleton
Colorado, United States · 39.61°, -105.02°
What is the weather like in Littleton in December?
In December, Littleton is typically 45°F (7°C) during the day and 20°F (-7°C) at night. The month brings about 0.8 in (20 mm) of precipitation in total. Snowfall averages about 4.9 in (124 mm) over the month.
- Average high45°F (7°C)
- Average low20°F (-7°C)
- Precipitation0.8 in (20 mm)
- Clear or mostly clear days17
- Snowfall4.9 in (124 mm)
- Based on2016-2025 daily ERA5 reanalysis data (10-year normals)