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Climate almanac

Chattanooga

Tennessee, United States · 35.05°, -85.31°

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What is the weather like in Chattanooga in September?

In September, Chattanooga is typically 84°F (29°C) during the day and 65°F (18°C) at night. The month brings about 3.1 in (80 mm) of precipitation in total.

  • Average high84°F (29°C)
  • Average low65°F (18°C)
  • Precipitation3.1 in (80 mm)
  • Clear or mostly clear days15
  • Based on2016-2025 daily ERA5 reanalysis data (10-year normals)