Climate in Pennsylvania

Like all other states lying in the continental zone, Pennsylvania's climate varies according to area and altitude. The state experiences four seasons, each varying in temperature depending on location.

Summers tend to be long, hot, and humid, particularly in the southeast. The mountainous areas are likely to be cooler. Although humid, they are usually less so. Autumns are generally moderate and pleasant, while winters are cold and snowy, especially in the mountains.

The area around Lake Erie usually experiences cooler temperatures, with the lake regulating the change of seasons. July tends to be the state's warmest month, with temperatures reaching over 90F (32C) in the southeast and southwestern areas near Pittsburgh.

Average temperatures are usually about 80F (27C). January is the coldest time of year, with temperatures dropping to about 23F (-5C). Tornadoes and floods can occur.