Being from Edmonton, Alberta, the weather can get interesting in spite of its northern location at 53 dgrees N latitude - the northernmost city in North America with a population over 500,000, as it is about 907,000 (metro) now.
But I wasn't even in Edmonton when an F4 tornado hit on July, 1987, after a week of unusually hot and humid weather. It came out of a nasty supercell thunderstorm firing hailstones the size of tennis balls. I was in Drumheller, in the Badlands of Southern Alberta at the time, but I did see some huge thunderheads to the north. This was Canada's second worst tornado, killing 27 people. However, during the summer and late spring, I do see some really big thunderstorms with intense lightning, hail and the occasional funnel clouds. Funnel clouds are tornado funnels that don't reach the ground, and I've seen them at least twice in Alberta, once from the rooftop of my apartment (that was a fairly big one).
Winters are something else entirely. Alberta winters are incredibly variable from year to year. In other words, it can be almost like Vancouver one year, then like the Yukon the next. I've seen winters with no snow on the ground at all on Christmas, with temperatures like Vancouver or Seattle's, even in Grande Prairie (lat. 55 N - similar to Moscow's latitude) Winters can be very cold. It's a very dry cold - no dampness at all, but we still get some snow. I've seen temperatures drop down to -47 Celsius (-53 F) and about -50 C (-58 F) in Dawson Creek, BC, only an hour and a half drive away. I was in Grande Prairie visting family at the time for Christmas holidays. That does not include the windchill effect! Gasoline will turn slushy when it gets that cold. Temperatures didn't go above -40 C for at least three consecutive days, and the ice fog got really thick. Edmonton has seen temps as low as -43 C(-45) within the last ten years. Blizzards are fairly rare in Alberta, but are most common in late winter and early spring, especially around the area of Highway 2 between Edmonton and Calgary.
It can and does get weird out there, spring is usually the strangest time of the year - it's not uncommon for the weather to be nice, hot and sunny one week, snow and cold temperatures the next.