PUNXSUTAWNEY, Pa. -- Here's a look at Groundhog Day, an American tradition that is meant to predict when spring will arrive.

The groundhog emerges from its burrow on February 2. If the groundhog sees its shadow when it emerges, there will be six more weeks of winter. If it does not see its shadow, spring will arrive soon.

1993 - Columbia Pictures releases the movie, "Groundhog Day," starring Bill Murray. In the years following the release of the movie, crowds numbering as high as 30,000 have visited Gobbler's Knob ...

1993 – Columbia Pictures releases the movie, “Groundhog Day,” starring Bill Murray. In the years following the release of the movie, crowds numbering as high as 30,000 have visited Gobbler ...

Sunday is Groundhog Day, the day that traditionally tells us how many more weeks of Winter are left. The website Yesterday's ...