Groundhog Day is Sunday, Feb. 2 and for the 31st year in a row Cynthia Riggs will celebrate with an open house at her home in West Tisbury. The party is from 5 to 7 p.m. and everyone is invited. Feel free to bring your own groundhog, and snacks if so inclined — but please don’t mix the two.

Ms. Riggs lives at the Cleaveland House, located at 620 Edgartown Road, near New Lane in West Tisbury.