I ride through thru the winter as long as temp is above 20F. Never had a problem of hands getting cold @ 65 mph. I've tried fingered gloves and after 17 miles numbness sets in. Haven't used snowmobiling yet. I've used my older pair working outside and even though they are worn, my hands are toasty and dry. Ordering my third pair today.
Only have worn these gloves a few times and not yet in the rain, but so far they are very warm, windproof and comfortable. They are a bit on the small size. I normally wear an XL, which was OK, but the XXL was better.
They are very well made and the touchscreen ability is going to be seen on every glove from now on, I hope.
These are the warmest gloves (with 2 layers of liner inside) I've tried so far on the cycle, but my finger tips are still cold when I ride 40 mph at 34 Fahrenheit. I may go to mittens, but I would like to try "lobster" mitts, which have 3 tubes for thumb & 2 pairs of fingers. Those were perfect combinations of dexterity and warmth in my nonmotorized bicycling experience, but the bicycle versions aren't tough enough protection for motoring.
These gloves do exactly what they're supposed to do - keep my hands warmer than they would be without them. They're indispensable on sub-30s mornings when threading helmet straps through fastener loops, fumbling keys out of pockets, or feeding gas pump slots with credit cards, etc - actions otherwise uncomfortable with bare hands but impossible with thick gloves. And they definitely add another level of warmth to aforementioned thick gloves.
After a few weeks of occasional contact with the outside world though, dangling threads are appearing, so I'm not sure how long-lived these will be. Regardless, they're far and away worth the money if you don't let low temperatures to keep you from riding.