In my entire career my office has only called a snow day once. There is some work I could do from home if I planned ahead for it (I am not set up to work at home and many tasks require access to documents in physical files, etc.) But the one time I had a snow day (as in the office actually told us all not to come in), I couldn’t have done that, either - our cable was knocked out, which meant we had no Internet or phone, either, and most of my work requires one or the other (our case management/forms prep software is Web-based).
And I physically could not have gotten to work that day; we had a 5’ snowdrift blocking the front door, and pickup trucks with plows on the front were literally getting stuck in the snowdrifts on our block in snow up to their hoods. We lived three blocks from he train, which basically always runs, but that time, even the trains were not running because of a derailment.
Other than that, we are always expected to come to work, though people with small children whose schools closed or people in the outlying suburbs with transportation issues sometimes needed to call in. Those who can work from home are generally allowed to, but if you aren’t able to work from home and can’t get to work, you don’t get a freebie snow day; you have to use a vacation day.