Groundhog Day is probably more synonymous with the Bill Murray movie of the same name than the actual celebration itself.
But its origins date back to the 1800s in the US when it was brought over from Europe by German immigrants who later became known as Pennsylvanian Dutch.
But what exactly is Groundhog Day, who is Punxsutawny Phil, and does it have anything to do with inexplicably having the same day over and over again?
What is Groundhog Day?
Groundhog Day is a popular tradition in the US and more recently Canada. During this day, the groundhog Punxsutawny Phil emerges from his burrow to predict what the weather will be like for the rest of winter.
If it is sunny, and Phil sees his shadow, then the superstition goes that the US will have to endure six more weeks of winter. If there is no shadow, then an early spring is on the horizon.
When is Groundhog Day 2018?
Groundhog Day is always on February 2.
What is the history of Groundhog Day?
The ancient German custom of Candlemas, the point midway between the winter solstice and the spring equinox, is what inspired what we now know as Groundhog Day.
Germans used a badger to predict the weather but when the tradition came to the US, a groundhog was used. German folklore said: 'If the badger sunbathes during Candlemas week, for four more weeks he will be back in his hole.'
The first official Groundhog Day in the US was in 1887 — though it is thought to have been celebrated before then — when a group of people made the trip to Gobbler's Knob in Puxsutawny to consult the rodent about the weather. People have been gathering at the same spot ever since.