I do have a tiny bit of experience cleaning windows in the cold. Some might say more experience than you.
Yes, you may have more experience but I'm the one who was wearing them today. Despite my bowing to your astounding knowledge of all things window cleaning, I do know when my hands are warm and when they are cold. Today, in the 377s, they were cold. In the 460s, they were warm and I could work despite the all-knowing guru declaring them "too thick". Despite your knowing everything there is to know about everything, both of those facts remain true.
Unless I'm making it up, of course, as some kind of fiendish plot to rig the market for Showa 460 gloves, available at:
http://www.safetysupplies.co.uk/trolleyed/6/18/Vin