Climate almanac
Rocklin
California, United States · 38.79°, -121.24°
What is the weather like in Rocklin in December?
In December, Rocklin is typically 58°F (14°C) during the day and 41°F (5°C) at night. The month brings about 6.3 in (160 mm) of precipitation in total.
- Average high58°F (14°C)
- Average low41°F (5°C)
- Precipitation6.3 in (160 mm)
- Clear or mostly clear days9
- Based on2016-2025 daily ERA5 reanalysis data (10-year normals)