This Day in National/World Weather History ...
 23 July 1946 → Eight homes were damaged when an F1 tornado hit the northwest edge of Concord, NH. A boy was killed when a shed collapsed.
 23 July 2003 → Betsy the Giraffe was killed when struck by lightning at the Disney Animal Kingdom. The animals are usually brought into shelter during severe weather, but this storm came with too little warning.
 23 July 2010 → The U.S.'s largest (by diameter) and heaviest hailstone on record fell on Vivian, SD. The stone was 8 inches in diameter and weighed 1.9 pounds. The person who found the stone reported that some melting had occurred before the official measurement was taken.

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August 13, 1987:

A succession of thunderstorms produced rainfall that was unprecedented in 116 years of precipitation records at Chicago, Illinois during an 18 hour period from the evening of the 13th to the early afternoon of the 14th. The resulting flash flood was the worst to ever strike the Chicago metropolitan area, causing 3 deaths and water damage that amounted to 221 million dollars worth. O Hare International Airport received an event total of 9.35 inches of rain in 18 hours, shattering the previous 24 hour record of 6.24 inches. For a period of about 24 hours, the airport was only accessible from the air as all roads were blocked by high water, including the Kennedy Expressway.


Record Highs: Record Lows:
Aberdeen: 112 (1965) Aberdeen: 35 (1964)
Kennebec: 114 (1965) Kennebec: 45 (1917)
Mobridge: 107 (1938) Mobridge: 44 (2004)
Pierre: 108 (1965) Pierre: 48 (2012)
Sisseton: 104 (1965) Sisseton: 39 (1964)
Timber Lake: 102 (1939) Timber Lake: 42 (2004)
Watertown: 102 (1965) Watertown: 35 (1964)
Wheaton: 100 (1984) Wheaton: 38 (1924)

Record Precipitation:
Aberdeen: 1.02" (1895)
Kennebec: 1.30" (1980)
Mobridge: 0.75" (1927)
Pierre: 1.35" (1997)
Sisseton: 1.75" (1989)
Timber Lake: 0.38" (1934)
Watertown: 1.28" (1945)
Wheaton: 1.52" (2006)


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