According to an old American legend: "It is the day that the Groundhog comes out of his hole after a long winter sleep, to look for his shadow.
- If the day is sunny and he sees his shadow, he regards it as an omen of six more weeks of bad weather and returns to his hole.
- If the day is cloudy and he therefore cannot see his own shadow, he takes it as an omen of spring arriving soon and stays above ground.