What are the odds of a white Christmas?

In order to qualify for a white Christmas, there must either be at least 1 inch of snow on the ground on Christmas morning or falling snow must accumulate to at least 0.1 inches on Dec. 25.

Bitter cold is coming for Chicago

The first month of winter has been relatively mild overall. If you like your winters on the above average side, enjoy it while you can because big changes are coming for Chicago.