As I've reported before, Chicago's winter temperatures have more influence over summer temperatures than the reverse. The hypothesis is that if Lake Michigan can't give up its summer heat in the winter, it has less capacity to absorb the next summer's heat. But in the winter, cold air masses have more capacity to absorb the lake's heat than summer's warm air masses have to deposit it.
Well, if the weather so far is any indication, next summer will be brutal. We're not getting cold-enough air so far.
The last time the daytime high temperature was below freezing was February 25th, only the 12th day in 2012 to be as cold. Yesterday the temperature got up to freezing; today's, tomorrow's, and Tuesday's forecasts call for 1°C. The longer-range forecast calls for only three days with high temperatures below 0°C through the end of the year.
Through March, the Climate Prediction Center calls for normal temperatures: