Washington lightning map
Thunderstorms are infrequent in Washington, occurring mostly over the Cascades and eastern interior during summer heating.
Cities in Washington
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Frequently asked
How many thunderstorm days does Washington get?
Washington averages about 8 thunderstorm days a year, versus a US average near 25. Activity peaks June–August.
When is thunderstorm season in Washington?
Lightning is most frequent June–August in Washington.