Yeah Toronto has really hot and dry summers and usually snow filled and cold winters (although winter hasn't really come this year yet). Compared to Vancouver where the summers are pretty mild in comparison but still beach weather, and during the winters it rarely snows (if you remember the 2011 Winter Olympics). And much like Seattle, it rains A LOT, mainly during the fall though. Toronto is definitely the largest and most industrial city in Canada. I think the Greater Toronto Area (GTA ) swallows the Greater Vancouver Area like 3-5 times.
As for the "very friendly, accepting people" that generally holds true. But like everyone has been saying, there are still a bunch of fuckheads here and there. Canadian history could take a while to learn but it might be a bit easier than the U.S. history since our country is only 144 years old.