On this date in 1850, historical reports indicate a tropical storm caused trees and signs to be blown down and damage to some buildings. The storm had made landfall in North Carolina on July 18. “As it moved north, Chesapeake and Delaware Bays took a beating as high waves and tides flooded the coast. It moved almost due north into central New York state,” the National Weather Service wrote. Water levels on the Chesapeake Bay rose 6 feet above normal.
And on this date in 2025, torrential rain in the northern half of the D.C. area brought flash flooding. “Silver Spring, Maryland, and Great Falls, Virginia, were the hardest hit after 5 to 5½ inches fell in less than two hours,” the Capital Weather Gang wrote. “Flooding also extended into northern areas of D.C. and Prince George’s County.” First responders conducted numerous high water rescues for stranded vehicles.
Here are other notables from this day:
- Average high: 90
- Average low: 73
- Record high: 102 (1930)
- Record low: 56 (1911)
- Record rainfall: 1.51 inches (1922)