I have lived in MPLS and the bike scene there actually tiny compared to a real bike city like Boulder, Copenhagen, Tokyo... In MPLS they like to think that they bike a lot, but I just don't see it. In the winter almost nobody bikes, there is maybe 100 people in the whole city who do.

No doubt, but the American Community Survey still ranks Minneapolis relatively high for cities that commonly receive snow. Boulder is indeed higher as a percentage of population, though not in absolute number of bicycle commuters.

That's also tangential to my point - people can get outside and do stuff in "bad" weather if they want to (and will probably be happier if they do so).