About South Williamsport, PA

With a population of around 6,300, South Williamsport sits in Pennsylvania, United States. The city operates in the Eastern Time Zone.

Across a typical year South Williamsport sees about 44 inches of precipitation and 36 inches of snow, with September the wettest month and February the driest. Temperatures range from January lows near 20°F up to July highs around 85°F, averaging 51°F annually — characteristic of a humid continental climate.