I initially was thinking that December was where it was at for ninas, but really its all over the board. strong ninas are strong signs for lots of December snow, but maybe everything is pushed back? because extended ensembles show cold really building in Canada towards Christmas. ninas also are usually a torch October, and this year was cool.
I strongly disagree with that last statement about shrinking winters. if anything we have been seeing early and later snows, though I'm not talking Toronto, I'm talking here. any uptick in temp has been matched by an uptick in snow, and the old adage about grandpas winters of his youth has been used for centuries but never right. The 1870s seem like the best match for brutally cold and snowy winters, though ironically there were a few torch winters thrown in even then. Outside of a few winters in the 1970s and the 2010s, and other scattered ones, you are either going to get an impressively cold winter or an impressively snowy one, rare to see both the same year in the southern Great Lakes.