The American snow epidemic JAN 12 2011
Before looking, see if you can guess the only US state currently without snow on the ground. The answer, from the NY Times:
With the arrival of snow in New York and the unusually severe storm in the South - which dumped more than a foot of snow in some areas -- the National Weather Service said an unusual nationwide occurrence had taken place. There was now snow on the ground in all 50 states - including Hawaii, where snow fell on a volcano -- except for Florida.