Once used a 3/2 in Delmarva until January first. It was the coldest I had been since I was 12 using crap dive suit remnants. It all depends on temp, but the year I used it into January was really warm and still by that point I felt like I was going to have a heart attack .
i wear a 3.2 all year in vb. its not too bad especially since wetsuits dont seem to let water come in untill over an hour into you session with a hood and gloves and booties. did it last year and im gonna be doing this year rocking a 3/2 xzip xcel wetsuit