Trust me..those two previous guys don't live in the "True North Stong and Free'.I live in Ottawa , and we do get real winters here in the Ottawa Valley.The BF Goodrich Blizzack and Michelin Alpin are serious winter tires. Currently I have the Sears Roadhandler T Plus made by Michelin.Its an all season tire and I have been quite compfortable zipping around with them for the last 100,000 kms.Canadian tire puts out the Motomaster SE, which I used for 130,000 kms on an 89 Sable ,after the factory set needed replacing, plus another set of the same for another 110,000 kms before I retired the car at 325000 kms .Tire air pressures were checked every couple of weeks or so in order to keep up with the outside temperature.
Ideally, seasonal tires are the way to go, but, most people are running all-season tires up here.
The greater Toronto area , probably has a similar winter as has Boston.Ottawa, is more cold and damp. Winnipeg is just plain cold in the winter (Wintterpeg).
Canadian people are always warm.