The National Weather Service in Chicago reports that Northern Illinois, including Chicago and Rockford, is having one of its warmest winters on record. Despite a cold period in mid-January, Rockford is currently tied for its second warmest winter. Chicago is having its sixth warmest winter.
The data was gathered from December 1st to February 9th. The five warmer winters in Chicago happened when temperature measurements were taken near Lake Michigan. This area typically has milder winter temperatures than the city’s airports.
Since 1942, the official observation site in Chicago was moved inland to Midway and O’Hare. Since then, this winter period up to February 9th is the warmest recorded. This indicates a notable change in the region’s winter temperatures over the years.
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