With a population of around 19,200, Upper Saint Clair sits in Pennsylvania, United States. The city operates in the Eastern Time Zone.
Across a typical year Upper Saint Clair sees about 41 inches of precipitation, with June the wettest month and February the driest. Temperatures range from January lows near 22°F up to July highs around 83°F, averaging 52°F annually — characteristic of a humid continental climate.
View historical weather for Upper Saint Clair · More cities in Pennsylvania