Northeast winds, cool temps boost chances for sprinkles off the lake; Saturday brings a 9th consecutive day of below normal temps

Chicago’s entered a third consecutive month with sub-normal temperatures—quite a change from the record-breaking string of 11 above normal months which preceded it.
September closed with a temp shortfall of 0.5-degrees while October and the young month of November have generated one and 4.5-degree deficits respectively.
Extensive clouds, light northeast winds off Lake Michigan and even a few passing sprinkles, especially in lakeside counties, all but assure the below normal temperature trend is to remain intact this weekend and into next week. Friday’s 48 and 34-degree extremes produced an average temperature which was 6-degrees below normal.
The cool weather is to continue well into next week at which time a shifting pattern could bring sharp warming to the area and do something 95 percent of Novembers have managed to do here since 1928 at Midway Airport—produce a high temperature above 60-degrees! More than half (56 percent) of those Novembers have even managed a temperature which has reached or exceeded 70-degrees.


Young November running nearly 11-degrees cooler than a year ago; the eight consecutive below normal days through Friday have run 4.9-degrees below normal


While November’s first two days have averaged 4.5-degrees below normal, the month is running just under 11-degrees cooler than the same November period a year ago. The temperature shortfalls of the past eight (soon to be nine) days have averaged 4.9-degrees!


Models hint at sharp warm-up as bucking jet stream out West sets stage for late week warming here


Big meteorological changes loom late in the coming week as a powerful cold surge dives into the country to Chicago’s west.  The evolving pattern will be interesting to monitor since a buckling jet stream to our west leads to southwest steering winds over the Midwest which warm temperatures.

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