The highest Wind Gust ever recorded in Chicago was 87 mph and was measured in February of 1894.
The highest recorded Dew Point of 82 degrees made July 29-30, 1999 very humid.
The highest recorded pressure was on February 16th, 1989.
March and April are normally the windiest in Chicago with an average wind speed around 12mph.
Almost a quarter of the days (23% on average) are clear in Chicago.