Philadelphia, PA Lightning Map
Real-time lightning tracking for Philadelphia, Pennsylvania. This city averages 32 thunderstorm days per year, making lightning awareness important for Philadelphia residents and visitors.
Live data from NOAA GOES-19 GLM. Philadelphia, PA.
Data sourced from NOAA GOES-19 GLM and the Storm Prediction Center.
Real-Time Lightning Near Philadelphia
Monitor live lightning strikes and approaching storms
Live Lightning Data for Philadelphia
Download the iOS app for live alerts, then use this city page plus the nearby-lightning and alert guides to make faster weather and safety calls in Philadelphia.
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Thunderstorm Season in Philadelphia
When to expect lightning activity in Philadelphia, PA
Thunderstorm season in Philadelphia spans from April through September. Peak lightning activity occurs in June and July, when warm, moist air from the south collides with cooler air masses. Spring severe weather season from March through May can produce dangerous storms.
Compared to the national average of approximately 25 thunderstorm days per year, Philadelphia sees 7 more days of thunderstorm activity. The Pennsylvania statewide average is 32 days.
Lightning Safety Tips for Philadelphia
Essential guidelines to stay safe during thunderstorms
30-30 Rule
When you see lightning, count to 30. If you hear thunder before reaching 30, get indoors. Wait 30 minutes after the last thunderclap before going outside.
Seek Shelter
With 32 thunderstorm days annually, residents of Philadelphia should always have a shelter plan. Move inside a substantial building or hard-topped vehicle.
Stay Informed
Use Lightning Tracker to monitor real-time lightning near Philadelphia. Set alerts for your neighborhood to get advance warning of approaching storms.
Avoid Open Areas
Stay away from open fields, hilltops, isolated trees, and bodies of water during storms. If hiking, descend from ridges and peaks immediately.
Useful Guides for Philadelphia
These guides match the nearby-lightning and alert questions people ask most often
Use this guide to judge nearby strike danger fast, especially when storms are building near your neighborhood.
Alerts Best alert options for Philadelphia stormsSee how app alerts, NOAA weather radio, and local warnings work when storms move toward your city.
Map guide How to read live lightning around PhiladelphiaUnderstand strike clusters, motion, and timing so you can decide when to get indoors.
Philadelphia Lightning FAQ
Fast answers for live lightning, storm season, and safety in Philadelphia
How many thunderstorm days does Philadelphia, Pennsylvania get per year?
Philadelphia averages 32 thunderstorm days per year. The national average is approximately 25 days, and the Pennsylvania statewide average is 32 days.
When is thunderstorm season in Philadelphia?
Thunderstorm season in Philadelphia spans from April through September. Peak lightning activity occurs in June and July, when warm, moist air from the south collides with cooler air masses. Spring severe weather season from March through May can produce dangerous storms.
What should I do if caught in a lightning storm in Philadelphia?
Follow the 30-30 rule: if the time between seeing lightning and hearing thunder is 30 seconds or less, seek shelter immediately. With 32 thunderstorm days annually in Philadelphia, always have a shelter plan. Move inside a substantial building or hard-topped vehicle, and wait 30 minutes after the last thunderclap before going outside.
Nearest Lightning Maps to Philadelphia
Jump to nearby city pages when storms are moving across the region