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September weather in Philadelphia, United States

Averages from 150 days in September across 2020–2024.

Typical conditions

Average high25.8°C
Average low16.3°C
Average mean20.7°C
Total precipitation540.7 mm
Rainy days73
Average precipitation hours3.5 h
Average max wind speed17.2 km/h
Average sunshine9.1 h/day

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