The Cold Phenomenon

So I went outside today. It was cold. Somebody asked me, "Why is it so cold?" and I think they meant it as a rhetorical question but it got me thinking, "Why is it so cold?" I think the obvious reason is the whole Sun getting farther away or less daylight, but then I started thinking about the whole cold phenomenon. I think some science class told me that cold happens when molecules slow down and hot happens when molecules speed up. So I guess it's cold because the air molecules are moving more slowly. But then when the wind picks up, it feels colder. Why doesn't the wind make the molecules go faster and heat up? Like friction. And what happens inside ice cubes? It would appear as though they are inanimate but they probably aren't on a molecular level. They obviously don't get all the way down to 0 degrees Kelvin in a standard freezer. They're nowhere near that cold. But what would happen to an ice cube that was that cold? Would it actually be that cold? Like if you dropped a 0 Kelvin ice cube into luke warm water, would that amount of coldness dissipate into the water and freeze it? But I've also heard that liquid water can't get any hotter than boilng point because then it turns to steam. Maybe the same is true for the other end of the spectrum...like it can't get any colder than freezing point. I wonder what happens if you drop an ice cube into boiling water. Probably what you would expect...