If it's really Parkie...you'll not beat the chemical hand warmers placed inside you're gloves.
I've had tried loads of Glove Types/Brands over years,best solution I've found is to take at least a couple of pairs!!
If it cuts up rough and or rains on longish passage ...being able to change into a dry pair or two will help..A lot!
Keep you're Head Hands and feet warm as poss...(Ghecko worn with a thin technical Balaclava,also,with a neck warmer is best solution I've found)
Quality Footwear ( I use Musto HPX warm but a bit short IMO) and decent if poss Murano socks ..(..foot warmers work too) and try to keep Hands warm ...BEFORE they get cold..AND ALL as DRY as possible,to lower wind chill.
Best I've found but always looking to improve things!