The snowfall is expected to be accompanied by a cold snap across much of the central and eastern regions of the country. Temperatures in the Midwest were forecast to be 20 to 30 degrees below normal, with wind chills forecast to reach minus 55 in the Northern Plains. Dangerously frigid conditions were expected in a large band of the central United States, from Montana to Wisconsin and through the Texas Panhandle. On average, temperatures will be 20 to 48 degree below average from the Northern Plains into the Central Plains, according to the National Weather Service. In January, Chicago was gripped by subzero temperatures for days, reaching minus 22 on Jan. 30.

Source: New York Times March 02, 2019 19:56 UTC