October in Philadelphia is the sunniest month of the year. In October, the weather in Philadelphia is typically warm. Average daily high temperature in October is about 22 degrees above zero. On average, Philadelphia has 24 sunny, 4 rainy, and 3 partly cloudy days in October. The rains are usually moderate. October as well as {{month_nom: February}}, and {{month_nom: February}} is considered the most comfortable time to visit Philadelphia.