Climate almanac
Grass Valley
California, United States · 39.22°, -121.06°
What is the weather like in Grass Valley in October?
In October, Grass Valley is typically 75°F (24°C) during the day and 48°F (9°C) at night. The month brings about 3.4 in (85 mm) of precipitation in total.
- Average high75°F (24°C)
- Average low48°F (9°C)
- Precipitation3.4 in (85 mm)
- Clear or mostly clear days22
- Based on2016-2025 daily ERA5 reanalysis data (10-year normals)