Well, the ice conditions vary widely from year to year. We probably get ice storms far more often than the folks up north, but day time temps hover around 33 degrees for most of the winter. It is so hard to say anything with certaintly since any given winter could get no snow, or a few feet of snow, or three ice storms, or 70 degrees in December, or slush one day, and solid ice the next. Basically anything is possible.
So, how much better are studded MTB snow tires than regular knobbies? Is it worth having a set and can you just ride on them in "normal" conditions or do I have to keep switching them?