![]() ![]() In Chicago, the winter's biggest snowstorm has ranged from a puny 2.4 inches during the 1921-22 snow season to 23.0 inches in 1966-67. On average, that is the largest snowstorm that Chicago can expect in any given winter season. (According to National Weather Service & WGN Weather Center) (based on 124 years of snow statistics beginning with the winter of 1884-85) briefly produced a wind-chill temperature of -93 degrees, the lowest ever recorded in Chicago. Early-morning temperatures between -20 and -27 in combination with biting northwest winds 25 to 35 m.p.h. Chicago's lowest wind-chill temperature: Bitterly cold temperatures and vicious winds gripped Chicago on January 20, 1985.Chicago's snow extremes: Greatest snowstorm, 23.0 inches January 26-27, 1967 snowiest and least-snowy winters, 89.7 inches 1978/79 and 9.8 inches 1920/21 greatest snow depth on ground, 29 inches January 14, 1979.Because June is considered to be a summer month, it is true that snow has occurred here in every season. Traces of snow have fallen as late as June 2, 1910, and as early as Septemand 1942. Chicago's snow season: July and August are the city's only totally snow-free months.Chicago's winter temperature extremes: Based on official temperature records dating from 1871, the city's highest winter temperature is 75 degrees (February 27, 1976) and the lowest is -27 (January 20, 1985) that is a range of 102 degrees.The range is from October 11 (O'Hare) to November 6 (Loop). Chicago's average first freeze date: The average date of Chicago's first freezing temperature in the autumn varies considerably across the metropolitan area, occurring earliest in outlying areas and latest downtown.Chicago's average cold arrival dates in autumn: Using Midway data (1928-2003), Chicago experiences its first autumn temperature in the 30s on Oct.Chicago's autumn snow records: In records dating from 1884, Chicago's earliest trace of snow: September 25 in 1928 and also 1942 earliest inch of snow: 1.8 inches on Octo(recorded at Midway Airport).Chicago temperature surprise: Based on Midway and O'Hare data, daily high temperatures in the 60s occur more often in the city during December than during July.11-17) during which 25.6 inches of snow blanketed the city. Chicago snow: On January 14, 1979, Chicago was in the midst of a 7-day period (Jan. ![]() Learn About the Chicago Weather Before You Get Stuck! Could Elusive EL Nino Mean Big Snows for Chicago This Winter? ![]()
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