What happens on feb 2 each year?

February 2 each year is known as Groundhog Day in the United States and Canada. On this day, folklore suggests that if a groundhog sees its shadow upon emerging from its burrow, there will be six more weeks of winter; if it does not see its shadow, an early spring is anticipated. The most famous groundhog, Punxsutawney Phil, is celebrated in Punxsutawney, Pennsylvania, where crowds gather for the event. Groundhog Day has also become a cultural reference, popularized by the 1993 movie of the same name.