Philadelphia is located at the confluence of the Delaware and Schuylkill rivers on the eastern border of Pennsylvania. The Appalachian Mountains to the west and the Atlantic Ocean to the east moderate the climate, eliminating extremes of hot and cold weather. Occasionally during the summer months the city becomes engulfed in ocean air that brings high humidity. Precipitation is fairly evenly distributed throughout the year, with maximum amounts during the summer months occasionally flooding the Schuylkill River. Snowfall is usually higher in the northern suburbs than in the city, where snow often turns to rain. High winds sometimes prevail during the winter months.
Area: 135.09 square miles (2000)
Elevation: Ranges from 5 feet to 431 feet above sea level
Average Temperatures: January, 32.0° F; August, 75.3° F; annual average, 53.6° F
Average Annual Precipitation: 45.7 inches of rain; 20.5 inches of snow