We're in for six more weeks of winter, according to Massachusetts' official groundhog, Ms. G, who spotted her own shadow on Saturday.

Dozens of people spent the day at Mass Audubon's Drumlin Farm Wildlife Sanctuary in Lincoln to watch Ms. G's yearly coming-out, which she's done every year since 2008.

Mass Audubon spokesperson Michael O'Connor said Ms. G is much more accurate than her Pennsylvanian cousin, Punxsutawney Phil.

"We would call her the number one prognosticator in the world, actually," O'Connor told WGBH News in a phone interview Sunday.

According to the official Massachusetts groundhog website, Ms. G has a 64 percent forecast accuracy, while Phil has only 30 percent accuracy. The world average, the website says, is 50 percent.

Wildlife sanctuary officials called this year's event "Climate Action Day" and held activities to educate visitors about climate change's impact on local flora and fauna.

“The impact of climate change on people and wildlife in New England is already evident, but that doesn’t mean that there is nothing that we can do about it,” said Drumlin Farm Sanctuary Director Renata Pomponi in a press release from Mass Audubon. "As the Commonwealth’s most prominent wildlife ambassador, Ms. G serves as a symbol of the animals and their habitat that we all can help to protect by working together in our communities."

O'Connor said the children at the event were thrilled to see Ms. G's shadow.

"I can't say the same for the adults who were on hand," he said. "They might have been hoping for a quicker return to spring."