Encyclopedia o f Chicago
Special Features : Chicago's Weather Extremes
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Chicago's Weather Extremes
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Chicago's Weather Extremes
Temperature Highest recorded temperature 105°F July 24, 1934
  Lowest recorded temperature −27°F January 20, 1985
  Most number of days in a year with temperatures at 90°F 47 1988
  Most number of consecutive days in a year with temperatures below 32°F 43 1976–77
Precipitation Most recorded precipitation in a 24-hour period 6.24 inches August 12–13, 1987
  Most recorded precipitation in a month 17.1 inches August 1987
Snowfall Most recorded accumulated snowfall in a 24-hour period 23 inches January 26–27, 1967
  Most recorded accumulated snowfall in a season 89.7 inches Winter, 1978–79
Source: WGN Weather data compiled from National Weather Service records, with data from 1872 to 2000 (Newberry Library)
 
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