In reply to blackreaver:
The following works well for me when going out in the conditions you've mentioned
Walk in:
Top half - old hooded Rab VR smock (probably sleeves up and unzipped)
Bottom half - old Mountain Equipment Ultrafleece salopettes (zipped open for venting) with some powerstretch or lighter weight plastic leggings underneath (pulled up to knee if walking quickly up a good path and not got gaiters on)
Powerstretch gloves or buffalo mitts, maybe a thin buff
Climbing:
Patagonia C4 top (no hood) underneath the Rab smock (possibly a Rab Cirrus windproof as well under the Rab)
Leggings/salopettes pulled down and gaiters on
Warmer climbing gloves, might be hard or soft shell
hat under helmet
Probably a buff around face/neck
Belaying:
Zip up and hood up if not there for long,
or belay jacket (hooded Patagonia Micro Puff or lighter weight Haglofs primaloft top without hood) unless partner is bigger (in which case we'll use his jacket) or I'm expecting to be there for ages.