Here's my recipe for cold weather riding of bikes from 23-1200cc's

Two piece rain suit.
Bandana for your face.
If you can find them, get those blue rubber "grippy gloves" there is one type that is for cold weather useage and they (of course) work better than the standard type.
Loose fitting layers under the rainsuit.
Over dress, you can always remove a layer or three.
Chapstick.

You'll soon find the "air gaps" no matter what you wear and you can refine your atire from there.