Groundhog Day

Groundhog Day is a traditional festival celebrated in the United States, Canada and parts of Australia (particularly in South Australia, in the region in and around the capital city of Adelaide) on February 2. It is a cross-quarter day, midway between the Winter Solstice and the Vernal Equinox.
In traditional weather lore, if a groundhog emerges from its burrow on this day and fails to see its shadow because the weather is cloudy, winter will soon end. If the groundhog sees its shadow because the weather is bright and clear, it will be frightened and run back into its hole, and the winter will continue for six more weeks.