Charlestown

What is the weather like in Charlestown in September?

In September, Charlestown is typically 74°F (23°C) during the day and 47°F (8°C) at night. The month brings about 1.7 in (42 mm) of precipitation in total. Snowfall averages about 1.1 in (28 mm) over the month.

• Average high74°F (23°C)
• Average low47°F (8°C)
• Precipitation1.7 in (42 mm)
• Clear or mostly clear days20
• Snowfall1.1 in (28 mm)
• Based on2016-2025 daily ERA5 reanalysis data (10-year normals)