So what is a white Christmas? It occurs when there's at least 1 inch of snow on the ground on Christmas morning. It doesn't have to be snowing on the actual holiday for that to happen. A trace of ...

While we've had a few Christmases with flurries over the last decade, 2002 was the last Christmas when we had snow fall and stick to the ground on Santa’s big day. We received an inch in Philly ...