Ah, that is a good question! Snow is a common occurrence on Christmas in many parts of the world, especially in colder regions. In the Northern Hemisphere, places like Canada, the United States, Europe, and Russia often have snow on Christmas. In the Southern Hemisphere, places like Argentina, Australia, and New Zealand are likely to experience snowy weather on Christmas. However, it's important to note that weather conditions can vary from year to year and from location to location, so there's no guarantee that snow will always be present on Christmas.