Oh, the frosty bite of winter. The weather in Montréal is not exactly known for being balmy. Temperatures from December through March hover in the five to fifteen degree Fahrenheit range. It snows, even just a sprinkling, almost everyday, and there are usually a couple weeks each winter where it gets as cold as negative 30 degrees Fahrenheit. Winter fashions involve knee- or even ankle-length coats and tall non-skid boots. Walking up or down the hill to campus is a feat of balance and nerves; it is not uncommon to see people falling on their butt on their way to class. The winters in Montréal start in November and end in March, with April only mildly warmer and very overcast.
The saving grace about the weather in Montréal is the beautiful fall and summer. When you first arrive in the city for freshman orientation, it's hot as hell and humid, too. The weather stays this way, cooling slightly in September to a lovely Indian summer. This is the time when you should explore the city and take advantage of the weather. Sit on the lawn, bring a lunch, and soak up the vitamin D. You will need a reserve come December. Unfortunately for students, the weather does not usually get nice until the week of finals, when students are about to leave for home anyway and are holed up in the library. McGill, unfortunately, operates during the worst part of the year weather-wise, and few students get to enjoy the comfort that Montréal weather can bring.