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Groundhog Day(土拨鼠节) is the day when people use the groundhog to predict the weather for the next six weeks. It is said that if the sun is shining when the groundhog comes out of his burrow(洞穴), then six more weeks of winter will follow. However, if it is cloudy, then spring will come early.
It is celebrated on February 2^nd
This is a tradition especially in the United States. It is mostly just for fun.
There are a number of celebrations in the United States. The largest celebration takes place in Punxsu tawney, Pennsylvania where the famous groundhog Punxsutawney Phil has predicted the weather each year since 1886. Over 10, 000 people go to see Punxsutawney Phil come out of this burrow at around 9:00 am,
At first, people celebrated February 2^nd as Candlemas Day (圣烛节). On this day, if the sun came out, then there would be six more weeks of cold weather. Later, people began to use the groundhog to make this prediction. On February 2^nd, 1886. The Punxsutawney Spirit, a local newspaper, declared (宣布) February 2^nd to be Groundhog Day and named a local groundhog Punxsutawney Phil. Since then the tradition has spread across the United States.