Punxsutawney Phil usually makes his weather call early in the morning. It typically happens after 7 a.m. Tradition says Phil seeing his shadow is a sign that the next six weeks will bring wintry weather. If Phil doesn't see his shadow, it means an early spring.

Massachusetts has its own groundhogs who divine the changing of the seasons, and one of them purportedly makes more accurate predictions than Pennsylvania's Punxsutawney Phil.

The weather-predicting groundhog celebrity has met two presidents and drinks a life-extending elixir: "Our Phil is like, probably 139 years old," Groundhog Club Inner Circle President Tom Dunkel says.