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DC weather history for August 11

Torrential rains in 1928 set a daily record and caused widespread flooding and rescues, while in 1984 another deluge produced extreme local totals—highlighting how dramatically rainfall can vary across short distances.

On this date in 1928, a calendar-day record 5.97 inches of rain fell in D.C. Over the 24-hour period that ended on that day, 7.31 inches accumulated.

“The heaviest rainstorm in many years, offspring of the tropical storm which swept Florida, struck Washington yesterday, pouring tons of water onto the city, and causing thousands of dollars worth of damage,” The Washington Post reported on its front page the next day. The Post said hundreds of automobiles were stranded in the storm and that scores of people had to be rescued from high water.

And on this date in 1984, a calendar-day record 4.68 inches of rain fell at Washington Dulles International Airport. On the previous day, Dulles received 2.38 inches, pushing its two-day total to 7.06 inches, fourth most on record. National Airport — less than 30 miles away — received less than an inch.

Here are other notables from this day:

Aug 10 Full calendar Aug 12
Jason Samenow

Jason Samenow

Chief meteorologist, journalist, and Capital Weather founder. AMS Certified Digital Meteorologist and D.C.-area native.

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