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

Feb. 2, all eyes will turn to Gobbler's Knob in Punxsutawney, Pennsylvania, as the world's most famous groundhog, Punxsutawney Phil, will emerge for his annual prognostication. Over 40,000 people are expected for this year's festivities.

So, how accurate is Punxsutawney Phil? Records show that Phil is not quite the prognosticator of prognosticators that legends purport him to be.