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Climate almanac

Charlestown

Indiana, United States · 38.45°, -85.67°

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What is the weather like in Charlestown in September?

In September, Charlestown is typically 82°F (28°C) during the day and 62°F (17°C) at night. The month brings about 3.4 in (88 mm) of precipitation in total.

  • Average high82°F (28°C)
  • Average low62°F (17°C)
  • Precipitation3.4 in (88 mm)
  • Clear or mostly clear days15
  • Based on2016-2025 daily ERA5 reanalysis data (10-year normals)