By the crustacean calendar
From Robert Whitcomb's "Digital Diary'' in GoLocal24.com:
So here we have a story from WLBZ-TV, in Bangor Maine, in which a group of Mainers (or Mainiacs) report that Passy Pete the Lobster “has predicted six more weeks of summer at an annual ceremony.’’
“The crustacean has been fished out of the Passagassawakeag River {which runs from Waldo to Belfast, Maine} for the past three years in a tradition modeled after famed groundhog Punxsutawney Phil's winter prediction in Pennsylvania,’’ the station reported.
Passy Pete is watched as “he picks a scroll to determine whether Maine will see an extended summer or soon be greeted by winter.’’ Pete's been right the past two years. Or so they say. Anything for a photo op to draw some tourists as the main tourist season winds Down East.