It doesn't map nearly as well for those of us who regularly have temperatures under -17C/0F in the winter. For me Celsius maps a LOT better to the temperatures

It doesn't map nearly as well for those of us who regularly have temperatures under -17C/0F in the winter. For me Celsius maps a LOT better to the temperatures I actually deal with year round. -17C is, accounting for wind chill, an average-ish winter day, that I'd consider pretty comfortable at this time of the year, assuminv appropriate clothing.