Climate almanac
Eureka
California, United States · 40.80°, -124.16°
What is the weather like in Eureka in January?
In January, Eureka is typically 54°F (12°C) during the day and 47°F (9°C) at night. The month brings about 9.6 in (244 mm) of precipitation in total.
- Average high54°F (12°C)
- Average low47°F (9°C)
- Precipitation9.6 in (244 mm)
- Clear or mostly clear days6
- Based on2016-2025 daily ERA5 reanalysis data (10-year normals)