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Climate almanac

Snoqualmie

Washington, United States · 47.53°, -121.83°

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What is the weather like in Snoqualmie in September?

In September, Snoqualmie is typically 67°F (20°C) during the day and 48°F (9°C) at night. The month brings about 3.9 in (99 mm) of precipitation in total.

  • Average high67°F (20°C)
  • Average low48°F (9°C)
  • Precipitation3.9 in (99 mm)
  • Clear or mostly clear days10
  • Based on2016-2025 daily ERA5 reanalysis data (10-year normals)