I agree regarding CPC potentially missing the boat on the late nino, but it will be close. Not sure I agree that a weak el nino will be worse for Boston, but it should be marginal and relatively late, so probably won't make a huge difference either way. I don't understand the logic behind the idea of low solar being bad for snow around here....doesn't mean its definitely wrong, but until I wrap my mind around causation, any statistical evidence is chaos due to sample size imo. I know some of the seasons in your data set, like 2010, could have easily played out much better snowfallwise. Even 2007 had a pretty big ending not too far north.