If this is your first go at waxing you might want to hold-off until summer so that you can get the hang of waxing before having to deal with the extra workload caused by poorer riding conditions.
I use waxed chains in wet BC weather, not as sever as Alberta, but winter maintenance is still a challenge compared to summer. Like all lubes, waxing does not last as long in poor weather as it does in good weather. During the winter, when it is really wet and grimy (e.g., 10-20 mm rain per day, and riding on gravel/dirt), I only get 2 days (4 commutes - 100 km) out of a chain before I need to re-wax it. To get around this I have about 4 chains that rotate on the bike with a Wipperman reusable quick link (these quick links are expensive, but are reusable and last forever). I opted for 4 chains as I typically re-wax 3 chains at a time to make it worth the hassle of cleaning the dirt off chains (much easier than an oily chain), melting the wax, re-waxing, and freeing up the links after waxing. I wouldn't recommend doing it for batches smaller than this as you will drive yourself bonkers!
If it is cold and dry the wax lasts much longer than in summer (e.g., 2x longer).
In terms of salt, this is a challenge for any lube. When it's salty I can get some surface rust depending on the chain quality and whether it is wet and salty or dry and salty.
So why bother
Running waxed chains in the winter is more bother than the summer, but maintenance is always higher in the winter. An advantage of waxing is that the chain and drivetrain remains relatively clean, even in disgusting wet conditions. The image below was from one winter commute in the pouring rain. The frame gives you an idea of how much debris has been thrown on the drivetrain (despite full length aluminum fenders with rolled edges), yet the the drivetrain is remarkable clean and can be quickly whipped clean with a damp rag, no solvents or elbow grease.