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Climate almanac

Pleasanton

California, United States · 37.66°, -121.87°

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What is the weather like in Pleasanton in December?

In December, Pleasanton is typically 57°F (14°C) during the day and 43°F (6°C) at night. The month brings about 3.4 in (85 mm) of precipitation in total.

  • Average high57°F (14°C)
  • Average low43°F (6°C)
  • Precipitation3.4 in (85 mm)
  • Clear or mostly clear days9
  • Based on2016-2025 daily ERA5 reanalysis data (10-year normals)