Delaware lightning map
Delaware gets a steady run of summer thunderstorms as humid Mid-Atlantic air interacts with sea breezes off the Delaware Bay and Atlantic.
Cities in Delaware
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Frequently asked
How many thunderstorm days does Delaware get?
Delaware averages about 30 thunderstorm days a year, versus a US average near 25. Activity peaks June–August.
When is thunderstorm season in Delaware?
Lightning is most frequent June–August in Delaware.