In brief
Every February 2nd since the late 1880s, people gather in Punxsutawney, Pennsylvania, for Groundhog Day. This tradition involves Punxsutawney Phil, a groundhog that predicts the length of winter based on whether he sees his shadow. His accuracy, however, has only been about 35% in the past two decades.
Every 2 February since the late 1880s, people have gathered in the Pennsylvanian town of Punxsutawney to watch a groundhog be pulled out of his burrow and presented to the crowd. Legend has it that if Punxsutawney Phil sees his shadow there will be six more weeks of winter; if not, spring is around the corner.
According to the US National Oceanic and Atmospheric Administration, Punxsutawney Phil's forecasts have an accuracy rate of about 35% over the past 20 years.
