White Christmas (weather)

A white Christmas is a Christmas with the presence of snow,^[1] either on Christmas Eve or on Christmas Day, depending on local tradition. The phenomenon is most common in the northern countries of the Northern Hemisphere. This is because December is at the beginning of the Southern Hemisphere summer, and so white Christmases there are extremely rare - with the exception being Antarctica, the Southern Alps of New Zealand's South Island, and parts of the Andes in South America as well as the southern tip of the continent, in places like Ushuaia, Argentina.