When was the last white Christmas in my city?

When was the last white Christmas in my city?

A white Christmas is officially defined by the National Weather Service as having at least 1 inch of snow on the ground on Christmas Day. On average, only about a third of the Lower 48 has snow on the ground on Christmas Day, but this figure has steadily dropped over recent years. In 2003, only 18% of the contiguous U.S. had snow on the ground on December 25.