Pennsylvania lightning map
Pennsylvania sees regular summer thunderstorms, with convection firing over the Appalachians and along fronts crossing the Mid-Atlantic.
Cities in Pennsylvania
Track lightning anywhere in Pennsylvania.
Get live distance, storm trend, and free alerts for your exact location.
Frequently asked
How many thunderstorm days does Pennsylvania get?
Pennsylvania averages about 35 thunderstorm days a year, versus a US average near 25. Activity peaks June–August.
When is thunderstorm season in Pennsylvania?
Lightning is most frequent June–August in Pennsylvania.