Climate almanac
Rossmoor
California, United States · 33.79°, -118.09°
What is the weather like in Rossmoor in January?
In January, Rossmoor is typically 66°F (19°C) during the day and 50°F (10°C) at night. The month brings about 3.0 in (75 mm) of precipitation in total.
- Average high66°F (19°C)
- Average low50°F (10°C)
- Precipitation3.0 in (75 mm)
- Clear or mostly clear days11
- Based on2016-2025 daily ERA5 reanalysis data (10-year normals)