I wouldn't sweat 22 mph steady winds. Anyone from Iowa, Kansas or Nebraska would never ride if that was dangerous. When the gusts start hitting 40-50 mph I start thinking twice. I have been blown across a road into oncoming traffic by a big wind gust. Part of this is that I use panniers that give a big cross section target, part was inexperience. Still, now that I've ridden in wind a LOT I don't like to ride on high wind days (defined as gusts of 40-50 mph). Even when relaxing and letting the bike turn me back into the straight line, I have trouble maintaining a line that I'm comfortable with on the road.

Given your description of your route being an MUP with trees I'd ride without question if winds are only in the 22 mph range.