Philly, is the largest city in the U.S. state of Pennsylvania, and the sixth-most populous U.S. city with a 2019 estimated population of 1,584,064.

Philadelphia played an instrumental role in the American Revolution as a meeting place for the Founding Fathers of the United States, who signed the Declaration of Independence in 1776 at the Second Continental Congress, and the Constitution at the Philadelphia Convention of 1787.

Philadelphia falls under the northern periphery of the humid subtropical climate zone, the city has a temperate maritime climate limited to the north by the continental climate. Summers are typically hot and muggy, fall and spring are generally mild, and winter is moderately cold.

Snowfall is highly variable with some winters having only light snow while others include major snowstorms. The normal seasonal snowfall averages 22.4 in (57 cm), with rare snowfalls in November or April, and rarely any sustained snow cover.