Besides being celebrated in a teeny, tiny town in central Pennsylvania, it is celebrated fondly by me for being the birthday of my mother born on 2/2/22
The ground zero of celebrations and news is Punxsutawney Pennsylvania PLUS Woodstock Illinois.
Woodstock was the filming location of the movie Groundhog Day, and the filming locations are now included in tours of this northern Illinois town.
The characters for Groundhog Day are Punxsutawney Phil and also Woodstock Willie. They are not to be confused with the mascot of Herrs Potato Chips here in Chester County, the chipmunk Chipper.
http://woodstockgroundhog.org/pages/events.html lists many events
And for those new to Pennsylvania, background info