Groundhog Day

History

Origins

The Pennsylvania Dutch were immigrants from German-speaking areas of Europe. A German tradition marked Candlemas (February 2) as "Badger Day" (Dachstag): if a badger emerging from its sett encountered sunshine, and thereby cast a shadow, four more weeks of winter were predicted.

Various traditional superstitions in German folk religion continue to be linked with Candlemas, although this was discouraged by the Reformed Churches in the 16th century. Notably, several traditions that are part of weather lore use the weather at Candlemas to predict the start of spring. The weather-predicting animal on Candlemas was usually the badger, although regionally, the animal was the bear or the fox.

The original weather-predicting animal in Germany had been the bear, another hibernating mammal, but when they grew scarce, the lore became altered. Similarity to the groundhog lore has been noted for the German formula: Sonnt sich der Dachs in der Lichtmeßwoche, so geht er auf vier Wochen wieder zu Loche ("If the badger sunbathes during Candlemas-week, for four more weeks he will be back in his hole"). A slight variant is found in a collection of weather lore (Bauernregeln, lit. "farmers' rules") printed in Austria in 1823.

The Pennsylvanians maintained the same tradition as the Germans on Groundhog Day, except that winter's spell would be prolonged for six weeks instead of four. For the Pennsylvania Dutch, the badger became the dox, which in Deitsch referred to "groundhog".

The standard term for "groundhog" was grun'daks (from German dachs), with the regional variant in York County being grundsau, a direct translation of the English name, according to a 19th-century book on the dialect. The form was a regional variant according to one 19th-century source. However, the weather superstition that begins Der zwet Hær'ning is Grund'sau dåk. Wânn di grundsau îr schâtte sent... ("February second is Groundhog day. If the groundhog sees its shadow...") is given as common to all fourteen counties in Dutch Pennsylvania Country, in a 1915 monograph.

In The Thomas R. Brendle Collection of Pennsylvania German Folklore, Brendle preserved the following lore from the local Pennsylvania German dialect:

Pennsylvania

The observance of Groundhog Day in the United States first occurred in German communities in Pennsylvania, according to known records. The earliest mention of Groundhog Day is an entry on February 2, 1840, in the diary of James L. Morris of Morgantown, in Pennsylvania Dutch Country, according to the book on the subject by Don Yoder. This was a Welsh enclave but the diarist was commenting on his neighbors who were of German stock.

The first reported news of a Groundhog Day observance was arguably made by the Punxsutawney Spirit newspaper of Punxsutawney, Pennsylvania, in 1886: "up to the time of going to press, the beast has not seen its shadow". However, it was not until the following year in 1887 that the first Groundhog Day considered "official" was commemorated there, with a group making a trip to the Gobbler's Knob part of town to consult the groundhog. People have gathered annually at the spot for the event ever since.

Clymer Freas (1867–1942) who was city editor at the Punxsutawney Spirit is credited as the "father" who conceived the idea of "Groundhog Day". It has also been suggested that Punxsutawney was where all the Groundhog Day events originated, from where it spread to other parts of the United States and Canada.

The Groundhog Day celebrations of the 1880s were carried out by the Punxsutawney Elks Lodge. The lodge members were the "genesis" of the Groundhog Club formed later, which continued the Groundhog Day tradition. But the lodge started out being interested in the groundhog as a game animal for food. It had started to serve groundhog at the lodge, and had been organizing a hunting party on a day each year in late summer.

The chronologies given are somewhat inconsistent in the literature. The first "Groundhog Picnic" was held in 1887 according to one source, but given as post-circa-1889 by a local historian in a journal. The historian states that around 1889 the meat was served in the lodge's banquet, and the organized hunt started after that.

Either way, the Punxsutawney Groundhog Club was formed in 1899, and continued the hunt and "Groundhog Feast", which took place annually in September. The "hunt" portion of it became increasingly a ritualized formality, because the practical procurement of meat had to occur well ahead of time for marinating. The flavor has been described as a "cross between pork and chicken". A drink called the "groundhog punch" was also served. The hunt and feast did not attract enough outside interest, and the practice was discontinued.

Regional celebrations

United States

The Slumbering Groundhog Lodge, which was formed in 1907, has carried out the ceremonies that take place in Quarryville, Pennsylvania. It used to be a contending rival to Punxsutawney over the Groundhog Day fame. It employs a taxidermic specimen (stuffed woodchuck).

In Southeastern Pennsylvania, Groundhog Lodges (Grundsow Lodges) celebrate the holiday with fersommlinge, social events in which food is served, speeches are made, and one or more g'spiel (plays or skits) are performed for entertainment. The Pennsylvania German dialect is the only language spoken at the event, and those who speak English pay a penalty, usually in the form of a nickel, dime, or quarter per word spoken, with the money put into a bowl in the center of the table. In select locations, such as Myerstown (where Uni is the resident groundhog), if February 2 lands on a Sunday, the ceremonies are moved to February 1. Most of these celebrations outside of Punxsutawney have switched to taxidermied specimens, stuffed toys or costumed characters instead of a live groundhog as of 2026.

Chuckles, a self-proclaimed woodchuck, has been providing the regional weather prognostication in Manchester, Connecticut since 1968 at the Lutz Children's Museum. According to tradition, Chuckles whispers his prediction into the ear of the town mayor, the only Connecticut public official who speaks "groundhog-ese", who then announces it to a crowd of citizens and state officials including the governor. The celebration is traditionally broadcast live by local television station WFSB and participating radio affiliates. An analysis of historical weather data and Chuckles' previous predictions reveals he offers a 60% accuracy rate, higher than most other weather-predicting animals nationwide. Notably, in 2024, Chuckles predicted an early spring (alongside Punxsutawney Phil and others) but Winter Storm Birch followed soon after, prompting the local police department of Guilford, Connecticut to issue a warrant and dubbing the rodent "Chuck the Liar". In a show of good will, Chuckles "turned himself in", but his record of previous accuracy and community service allowed him to be released.

In Milltown, New Jersey, Milltown Mel was purchased in 2008 in Sunbury, Pennsylvania, by Jerry and Cathy Guthlein, and lived in a cage in the Guthleins' back yard. Mel's first event was at the family business, the Bronson and Guthlein Funeral Home, with later events moved to the American Legion Post, with free coffee and doughnuts served afterwards. Mel died in 2021.) The state of New Jersey has prohibited the procurement of a replacement groundhog and seized a groundhog the town had procured from Tennessee because of rabies control laws. New Jersey Governor Phil Murphy vetoed a bill that would have allowed for the event to resume.

Canada

The day is observed with various ceremonies at other locations in North America beyond the United States.

In Nova Scotia, Groundhog Day traditions arrived with German Foreign Protestant immigrants in the 1750s where it was known as "Daks Day" (from the German dachs) in the German dialect of Lunenburg County settlers.) Due to Nova Scotia's Atlantic Time Zone, the province's official groundhog, Shubenacadie Sam makes the first Groundhog Day prediction in North America, a tradition at Nova Scotia's Shubenacadie Wildlife Park since 1987.

In French Canada, where the day is known as Jour de la marmotte, Fred la marmotte of Val-d'Espoir was the representative forecaster for the province of Quebec from 2009 until his death in 2023. A study also shows that in Quebec, the marmot and groundhog (siffleux) are regarded as Candlemas weather-predicting beasts in some scattered spots, but the bear is the more usual animal.

Wiarton Willie forecasts annually from Wiarton, Ontario.

Manitoba Merv has been forecasting since the 1990s, at Oak Hammock Marsh.

Winnipeg Wyn was forecasting starting in the 2010s, at Prairie Wildlife Rehabilitation Centre. Wyn died in 2020.

Balzac Billy is the "Prairie Prognosticator", a man-sized groundhog mascot who prognosticates weather on Groundhog Day from Balzac, Alberta.

Nanaimo, a ferry port city on Vancouver Island in British Columbia, Canada present Chopper, Marlu, and Van Isle Violet, all wild Vancouver Island marmots, for forecasts, via the Marmot Recovery Foundation.

Accuracy

Statistics

Punxsutawney Phil's statistics are kept by the Pennsylvania's Groundhog Club which cares for the animal. Phil has predicted 106 forecasts for winter and 21 for an early spring. One year he had a partial shadow, in 1942. There were 10 years when Phil's prediction was not recorded, all of which occurred in the 1880s and 1890s. There has been one year when the event was canceled (1943) due to World War II.

Most assessments of Phil's accuracy have given an accuracy lower than would be expected with random chance. Stormfax Almanac gives Phil an estimate of 39% accuracy. Meteorologist Tim Roche of Weather Underground gives Phil a 36% accuracy rate between 1969 and 2016, a range chosen because local weather data was most reliable from 1969 onward, and a 47% accuracy record in that time span when predicting early spring. The National Centers for Environmental Information, using a basic metric of above-normal temperatures for early spring and below-normal temperatures for more winter, placed Punxsutawney Phil's accuracy at 40% for the ten-year period preceding 2019.

The Farmer's Almanac, which itself has been known for forecasts of questionable accuracy, gives an assessment of "exactly 50 percent" accuracy. The National Geographic Society reports a 28% success rate. A Middlebury College team found that Phil's long-term analysis of temperature high/low predictions were 70% accurate, although when the groundhog predicted early spring it was usually wrong. Canadian meteorologist Cindy Day has estimated that Nova Scotia's "Shubenacadie Sam" has an accuracy rate of about 45%, compared to 25% for Wiarton Willy in Ontario.

A 2021 study by Lakehead University climatologists compared 530 predictions by 33 weather-predicting groundhogs to the beginning of spring weather. It used the locally recorded blossoming of the spring wildflower Carolina Spring Beauty as an indicator of the arrival of spring weather. The study concluded that groundhog predictions are pure chance, with an accuracy rate of 50%. Punxsutawney Phil was scored an accuracy rate of 52% with Ontario's Wiarton Willie at 54% and 65% for Nova Scotia's Shubenacadie Sam, all below 75% score regarded as reliable by the study. A high reliability rate was achieved by only two groundhogs: Oil Springs Ollie in Oil Springs, Ontario and Essex Ed in Essex, Connecticut. Several noted groundhogs were wrong over 70% of the time including Buckeye Chuck in Marion, Ohio; Dunkirk Dave in Dunkirk, New York and Holland Huckleberry in Holland, Ohio.

Pseudoscientific evaluation

Prediction based on an animal's behavior used to be given more credence in the past, when stores of food became scarce as winter progressed.

One theory states that the groundhog naturally comes out of hibernation in central Pennsylvania in early February because of the increasing average temperature. Under this theory, if German settlement had been centered further north, Groundhog Day would take place at a later date. However, the observed behavior of groundhogs in central New Jersey was that they mostly come out of their burrows in mid-March, regardless of Groundhog Day weather.

Similar customs

In Croatia and Serbia, Orthodox Christians have a tradition that on February 2 (Candlemas) or February 15 (Sretenje, The Meeting of the Lord), the bear will awaken from winter dormancy, and if it sees (meets) its own shadow in this sleepy and confused state, it will get scared and go back to sleep for an additional 40 days, thus prolonging the winter. Thus, if it is sunny on Sretenje, it is a sign that the winter is not over yet. If it is cloudy, it is a good sign that the winter is about to end.

Similarly in Germany, on the June 27, they recognize the Seven Sleepers' Day (Siebenschläfertag). If it rains that day, the rest of summer is supposedly going to be rainy. As well, in the United Kingdom, July 15 is known as St. Swithin's day. It was traditionally believed that, if it rained on that day, it would rain for the next 40 days and nights.

Also in Catalonia, Candlemas was traditionally identified in mountainous areas of Catalonia as the date that bears awake from hibernation: "per la Candelera, l'ós surt de l'ossera" ("on Candlemas, the bear leaves its den").

Popular culture

The holiday gained more prominence, particularly internationally, with the release of the 1993 comedy film Groundhog Day with Bill Murray and Andie MacDowell. The film became the 13th highest grossing of the year, with over $70 million at the box office. Over time, the film became a cult classic and significantly increased awareness and attendance at Groundhog Day events.

The holiday's origins also play a prominent role in the 1979 Rankin/Bass holiday special Jack Frost. Groundhog prognosticator Pardon-Me Pete's shadow is manipulated by Jack Frost to buy more time to use his wintery magic to protect January Junction from the villain. Over the years since there has become a proper agreement between the two to give Jack more time for wintery fun in exchange for Pete getting extra hibernation time.