You can always look at some numbers here.

And consider that (in no meaningful order) : (1) winds are more variable than elevations; (2) quite often, mornings are calm and afternoons breezy; (3) do you prefer riding with the sun in your face or on your back? (4) long and steady 2% grades are benign, short and undulating 10% grades are tiresome.

[EDIT]What is the situation wrt interprovincial travel? I though that BC had recently closed it's borders, and that Alberta was considering it. (I've also read that enforcement was spotty) [/EDIT]