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Climate almanac

Eureka

California, United States · 40.80°, -124.16°

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What is the weather like in Eureka in December?

In December, Eureka is typically 54°F (12°C) during the day and 48°F (9°C) at night. The month brings about 8.1 in (205 mm) of precipitation in total.

  • Average high54°F (12°C)
  • Average low48°F (9°C)
  • Precipitation8.1 in (205 mm)
  • Clear or mostly clear days6
  • Based on2016-2025 daily ERA5 reanalysis data (10-year normals)