September weather forecast and climate
Pennsylvania, USA

Flag of Pennsylvania, USA
Flag of Pennsylvania, USA

Weather in September

September marks the start of the autumn season that covers the landscape with beautiful colors. The leaves start to turn, and by the end of September, the lush green landscape adorns a colorful cloak ranging from orange, yellow, amber, gold to red, and magenta.
The average high temperatures are in the comfortable 72°F (22.2°C) to 80°F (26.7°C) range, while the night temperatures drop to 46°F (7.8°C) to 60°F (15.6°C). Sunshine is ample, with an average of 19 sunny days. Fall is prone to cold breezes, especially in the evenings - so, it is a good idea to dress in layers.
An odd storm may pass through early fall with the likelihood of heavy rain. Fall also spots active wildlife who scramble across the land in search of food. The vibrant colors during the autumn make for some great experiences, and the period around the fourth week of September is one of the best times of the year in Pennsylvania to carry a camera!


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