That's about right for early November, but keep in mind a 30 average high could mean 0 one day and 60 the next. Alberta weather is pretty volatile. Prepare for -20 lows but don't be surprised if it stays above freezing.
I'm actually going through the exact same thing, with Diamondback 10x42s that were painfully inadequate next to a friend's Viper 12x50s on a couple trips last year.
12x was a lot easier to line up and hold steady than I expected, but since even 10x is feeling a bit overpowered in the thick...