DENVER - The name is strange but hoar frost is beautiful.
People across Colorado shared their pictures of the ice crystals as they woke on Sunday.
The National Weather Service says hoar frost forms the way dew does on objects like fences or tree branches. The dew point in the air, as well as the temperature of the object, must be below freezing. As soon as the water in the air touches the freezing surface, it becomes a solid.
Check out pictures of the Sunday hoar frost below: