Groundhog Day is all about getting a weather report from a groundhog (or something else). Here's how accurate those prognosticators are according to NOAA.
Punxsutawney Phil has predicted a longer winter far more often than an early spring, but he is right less than half the time. That’s why a second opinion is a good thing.
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.