I've got a yellow Lab. Labs have a rep of being good in cold weather, and of being outdoorsy. Blondie likes the outdoors, but she doesn't like being alone in the yard. She's so sociable, she seems to get lonely, despite the intermittent walkers-by. And when it comes to the cold, well, if it's down around zero Fahrenheit, she really doesn't like it much. The big vulnerability seems to be in her paws. Of course, in humans, it's the digits that get cold first, too. So I ordered some wax to put on her paws for the extreme cold, because she doesn't seem to want to wear booties.
But tonight I took her for a walk in a pretty good downpour, with temperatures just above freezing. So that was a cold shower, by human standards. Didn't bother her at all. I suppose that matches to the breed's original function - helping hunt ducks in the autumn, gladly diving into cold water to retrieve ducks that have fallen into a pond, and so forth.
She also has the "retrieving" characteristic. She carries things around in her mouth all day.
It's too bad I'm not a hunter! She'd probably enjoy it.
Would she be a good retriever? I'm a firm believer.