Yes we have had some cold Sundays. Below 35F and I am not riding, usually.
This Sunday, Christmas Day, it may be moderate but I have to admit that I am preparing for the ING Miami Half Marathon on January 29. I may be running mostly till then.
A cycling group riding Sundays from Lakeville and Northern @7:00am and from Wheatley and LIE @7:30ish. A half hour later in the fall and spring. An hour later in the winter. (The current start time is 7:00am from Lakeville Road)