WGN-TV Chief Meteorologist Tom Skilling and the WGN Weather Center staff provide daily coverage of weather in the Chicago area.

100s in Chicago

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Dear Tom,
When we left Phoenix is was 105 degrees. Can it get that hot here?

Elise White Pearce
Dear Elise,
Triple-digit heat is common in Phoenix, occurring more than 100 days
annually, including 17 days when the mercury reaches at least 110. While
Chicago does experience 100-degree weather, it does so only on limited
occasions. Officially, the city's all-time hottest day was just 105 degrees
on July 24, 1934, but unofficially the city has recorded readings of 105
degrees or higher nine times at Midway Airport, most of them during the
torrid "Dust Bowl" summers of the 1930s. During the summer of 1934 the
thermometer reached at least 105 degrees five times, topped by a high of 109
degrees on July 23. The city's most recent encounter with extreme heat was
back on July 13, 1995, when Midway climbed to 106 degrees during a deadly
three-day episode of heat and humidity that claimed more than 750 lives.