Groundhog Day is a US tradition originating from the German Candlemas day and brought to America by German settlers. On 2nd February, if the groundhog emerges from its winter hibernation and can see its shadow on the ground, it knows that winter will last at least another six weeks. If there is no shadow, there will be an early end to winter.Find out more about Groundhog Day and have fun with it in your classroom or home using our new Groundhog Day activities: