With the moderating Great Lakes, Detroit has more winters than Chicago where temperatures do not fall below 0. Obviously more often than not they do fall below 0, but I have to check how many winters do not (but I know it's more than 10%). Very few subzero readings in the 1950s, easily the decade with the least. What is interesting to me is that the lowest temperature so far this season was 7゚on November 13th. I don't think there has ever been a season where the coldest temperature was in November (granted that was not only a record low but record earliest date for a single digit low).
On another note since the last few days were the 1st fluff fest of this season, I am reminded how quickly fluffy snow compacts/settles/melts compared to wetter snow. Nothing more gorgeous than the sparkles a fluffy snow, but it's so annoying to see how a temperature of 32゚ can zap it down so quick.