The average snowfall amount per day during snow season is about two inches. In some of the mountain areas of the American West, the average is seven inches per snow day. Practically every location in the good ole US of A has seen it snow. Even most portions of southern Florida have seen a few flurries, and there has been a genuine snowman in front of the Alamo.
Fresh snow makes an excellent insulator.
The continental United States experiences an average of 105 snow-producing storms a year. Typically a storm will have a lifetime of 2-5 days and deliver snow to portions of several states. Man-made snow is real snow. It just isn't made by a storm of nature. His work was the first scientific reference to snow crystals.