Norristown, in Pennsylvania, United States, is home to roughly 34,400 people in the Eastern Time Zone at 40.1°N latitude.
Across a typical year Norristown sees about 45 inches of precipitation, with September the wettest month and February the driest. Temperatures range from January lows near 27°F up to July highs around 88°F, averaging 56°F annually — characteristic of a humid continental climate.
View historical weather for Norristown · More cities in Pennsylvania