>I have NEVER lived, and rarely visited places (including Europe), where someone hasn't used the "if you don't like the weather, wait an hour" joke, non-ironically.

I've NEVER lived anywhere anyone has made that joke, ironically or otherwise. That may have to do with the fact that the last 2 places I've lived (Portland, OR and Phoenix, AZ) have very long stretches of monotonous weather. But 2 certainly doesn't seem nearly as true as 1.