Is Groundhog Day accurate

Groundhog Day has been celebrated in Punxsutawney since 1887. The 1993 film "Groundhog Day" made the event world famous and attracts thousands of visitors every year. At the same time, millions of viewers sit excitedly in front of the TV and join in the excitement. The star and focus of the party is Phil the marmot.
Traditionally, he makes a prediction about how long the winter will last. When the marmot sees its shadow - that is, the weather is clear and bright - then winter should last another six weeks. If it is cloudy and consequently no shadow can be seen, spring begins. The marmot day has its origins in the Catholic holiday of Mary Candlemas and goes back to German settlers. In addition to Punxsutawney, there are similar marmot celebrations in numerous other places in Canada and the northern United States.
Phil and his marmot colleagues may not be trained meteorologists, but they are clearly natural talents. Whether their predictions will always be correct is another story. The US Climate Data Center calculated that Phil was only correct 17 times in more than a decade. For example, he predicted the beginning of spring in 2011 and 2013 and snowstorms followed. In addition, when predicting, the marmot does not attach itself to a specific place. Somewhere in the USA, after his big show, it will be spring soon - or still winter. And it is well known that there is a little bit of truth in every tradition and in every wink.