On February, 2, 1887, Groundhog Day was celebrated for the first time in Punxsutawney, Pennsylvania. If a groundhog comes out of its hole on this day and sees its shadow, there will be 6 more weeks of winter; no shadow means an early spring. The tradition arrived with Germans immigrants. In Germany, they used hedgehogs as meteorologists, but groundhogs were easier to find in Pennsylvania. Â The Punxsutawney Groundhog Club makes a three-day party of the event.