That is a cool website. I personally have compiled things like that for Detroit but it's very rare to see a national weather service compile that much detail of stats, let alone the dnr. I just used Xmacis and it calculated the data from 1900 to 2020 period I do not have snow cover data for Minneapolis from 1884 to 1900. I like Xmacis because as long as there is no missing data you can get the exact averages of whatever your looking for, no quality control or anything. The bottom line is, 88 or 100 days it really does not matter, for a snow cover lover Minneapolis is one of the best metros to live in in this sub. Considering the long term average is only 6" more snowfall than Detroit but 38 more days of 1" snow cover, I would say Minneapolis does an excellent job of making their snow last.