Wow, 3 degrees is not just uncomfortable, but literally cold enough to be painful. Our pool gets down to about that over the winter and sticking my hand in for even a few seconds hurts. Interesting that you found it less painful after a while though.
Yeah, I don't think they will be that cold once we're out of the winter. I live in Canada, so I'm a little bit used to the cold. Although not as much now that I live in Toronto.