You can add the central valley of Northern California to the list of unusual places where snow has made an appearance this year. Metropolitan Sacramento reported multiple places this morning with 2 to 4 inches of snow. There was as much as 12-16 inches overnight at just 1500 feet of altitude. I have lived here for 20+ years and only seen snow a couple of times, but never staying long enough to measure. And they are predicting the mid-20sF (-4C) for the temperature tonight...