Quante settimane fino a Groundhog Day - US?

Groundhog Day (Canadian French: Jour de la Marmotte: Pennsylvania German: Grundsaudaag, Murmeltiertag) is a traditional holiday celebrated on February 2. According to folklore, if it is cloudy when a groundhog emerges from its burrow on this day, then spring will come early: if it is sunny, the groundhog will supposedly see its shadow and retreat back into its burrow, and the winter weather will persist for six more weeks.