The best known of these is Buckeye Chuck, Ohio's official weather-predicting groundhog.
But where did this freaky tradition come from?
It was with these things in mind that Phil's fans and followers flocked to Gobbler's Knob first thing Saturday morning - after a full day of activities and the Groundhog Banquet on Friday - to hear what the Seer of Seers had to say.
The groundhog has seen his shadow 103 times, making predictions of long winters more common.
If he would have saw his shadow, winter would last for another six weeks.
The tradition was part of the Christian celebration of Candlemas Day, which marked a halfway point between the winter solstice and spring equinox.
It's celebrated across North America, but in Punxsutawney they have a much more specific tradition.
According to the Punxsutawney Groundhog Club traces the introduction of the animal to Germany, where people initially using hedgehogs as the hibernating mammal of choice.
Not to dash spring-lovers dreams - Punxsuatawney Phil's accuracy is only around 39% to 40% over the past 133 years.
Phil made his 133rd recorded appearance on Saturday.
New York Mayor Bill de Blasio stopped attending Staten Island's Groundhog Day ceremony in 2015, a year after he accidentally dropped the furry critter that died a week later.
Though Punxsutawney Phil is the most well-known, other states celebrate with their own groundhogs too. His predictions were wrong in both 2017 and 2018.