I’m looking out my window at snow falling right now. You’re right that snow below 0 degrees in uncommon, but I’ve never noticed much of a difference in wind. That could be because where I live temperatures 20 below or worse aren’t common and are transient, so another front is probably nearby and creating wind.

I still wouldn’t want to bike in it, if only because of ice.

For the record I live in Minnesota, one of the coldest and snowiest states in the US.