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Illinois Weather Trivia for July 30th

7/30/1999
Intense heat was noted throughout Illinois, during the last few days of July 1999. Chicago set an all-time dewpoint record of 82 degrees the morning of the 30th, when the minimum heat index in Chicago failed to fall below 100. 99 people died from the heat in the Chicago area.

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  • Page last modified: 13-Sep-2010 5:47 PM UTC