If you live in Chicago, your gloominess may have something to do with the cloudiest December in 39 years:
The full month [of December 1975] managed just 19% of its possible sun that year–the same lackluster sunshine allotment on the books in 2014 as we move the final days of December. Failure to boost that pitifully limited tally between now and the month’s close at midnight this coming Wednesday, would put the Chicago area in line for a possible new record.
There have been cloudier months. Our veteran Chicago climate guru and official National Weather Service observer Frank Wachowski at Midway Airport since the 1950s, reports Nov 1985 managed just 16% of its possible sun making it this area’s cloudiest month since sunshine records began here in 1893.
We're now in our 13th day without sun. Thirteen days, no sun. And then next week, this:
Big changes again loom. Temps appear poised to tank with arctic air’s reappearance later this coming week extending into the closing days of 2014 in the week which follows. Signaling the change is warming in the arctic. Huge pools of “warmer” than normal air are predicted to assemble through the atmosphere over Alaska and Greenland in the coming 6 to 10 days creating atmospheric “blocking” there. You can see them in the orange-hued areas on this hemispheric forecast generated by the National Weather Service’s GFS global forecast model. That the global models of other national meteorological organizations are producing strikingly similar forecasts reinforces confidence in the forecast of change.
At least, if it's that cold, it will probably be sunny.