Feb. 2 is Groundhog Day! Did you know there is a special “groundhog punch” that keeps Punxsutawney Phil alive? This lets him see his shadow (or not).

Every February 2 all of the attention is on Punxsutawney, in particular Gobbler's Knob, to see if a famous groundhog will predict an early spring or six more weeks of winter.

There is only one Punxsutawney Phil, but many challengers to his throne. How accurate are they? These weather experts decided to find out.

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.

Get ready for Groundhog Day with these surprising details about America's oldest weather-predicting groundhog.

On Sunday, Pennsylvania's most famous groundhog, Punxsutawney Phil, will make his prediction from Gobbler's Knob. When the big moment happens, you'll be able to watch it live on this page. We'll stream it in the video player above.

Will America's favorite rodent see this shadow this weekend? The forecast seems to be a "slam dunk" conclsuion.

Here's what the weather forecast shows for Punxsutawney Phil's prediction for Groundhog Day on Sunday morning.

If Phil doesn't see his shadow, it means an early spring. So, what do you think will happen? Vote in our poll, which has been extended through Saturday.

The groundhogs — along with a tortoise, whose emergence from his winter hibernation foretells the coming of spring, and a prairie dog statue, whose shadow at sunrise predicts how long it will be until spring arrives — were ranked based on their accuracy over the past 20 years, using the March temperature averages for the U.S., NOAA said.

This Groundhog Day, discover a few fun facts about the legendary Punxsutawney Phil, including who he’s actually (supposedly) named after.