July is usually the hottest month of the year in Pennsylvania, with the average high temperatures in the state of 79°F (26.1°C) to 87°F (30.6°C) and the average night temperatures of 54°F (12.2°C) to 63°F (17.2°C). Pittsburgh in the west averages between 63°F (17.2°C) to 83°F (28.3°C), while Philadelphia in the southeast corner is between 69°F (20.6°C) and 87°F (30.6°C). More than 20 days see the presence of sun with the rest being cloudy and rainy. Plenty of sunshine ushers in long days exceeding 13 hours of daylight suitable for outdoor activities. July is the wettest month with an average of 5" (127mm) of rain - the western side of the state is rainier than the eastern one. The lakeside towns provide warm waters suitable for swimming and water activities. Summer is the perfect time for camping, fishing, visiting zoos and national parks, or just dropping into one of the many caves in the state. While rain is imminent, light summer clothing is apt for wearing in the season.