New Hampshire lightning map
New Hampshire's thunderstorms are mostly summer afternoon events, firing over the mountains and along cold fronts crossing New England.
Cities in New Hampshire
Track lightning anywhere in New Hampshire.
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Frequently asked
How many thunderstorm days does New Hampshire get?
New Hampshire averages about 20 thunderstorm days a year, versus a US average near 25. Activity peaks June–August.
When is thunderstorm season in New Hampshire?
Lightning is most frequent June–August in New Hampshire.