Sure, the temperature got down to -13°C this morning, but we haven't had any real cold yet this winter, despite the 25°C temperature drop yesterday. Yesterday's high of -3°C was the first below-freezing high temperature of the winter. We've only had that occur this late in the year on five other occasions—two of them this century. Chicago gets its first below-freezing high temperature by November 24th on average. Yesterday's event ties 2001 and is only a few days before the latest occurrence of January 1st (2013 and 1924).
The Climate Prediction Center forecasts above-average temperatures all winter:
Also in early 2021 we should get the revised climate normals as the 1991-2020 data supersedes the 1981-2010 data we've used for 10 years. We expect normal temperatures to rise in most parts of the United States, with dramatic jumps expected in Alaska. Even with the revised numbers, we expect above-normal temperatures to outnumber below-normal temperatures for the next decade.