Actually this happens a lot more often than one would think. The only place that really would need to get snow for this to happen in most years is the Southeast (FL, AL, etc.).
Hawaii usually has snow on Mauna Kea. You can even go skiing there with Ski Guides Hawaii. They call it "Pineapple Powder" and generally it can last into May, some years. El Ninos like this one are great for skiing in Hawaii, as well.
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(on October 2-3, 2009
): Schweitzer receives first snowfall of the 2009-10 season. Ken Barrett, lead guide at Selkirk Powder Company, kicks off season by skiing down the ramp outside SPC's private lodge. Think Snow.