Yes, San Francisco is indeed one of the most beautiful cities - I cant compare it to a lot of other cities, I havent seen that many, but i think one may compare it to a European city. It has this kind of a European style - architecture, people, even weather. Thats why I absolutely love it.
Regarding your questions, i think generally we are paying more attention to weather patterns, but only because the weather patterns have been shifting in my opinion. Whether those fluctuations are due to random variations or to one certain phenomena, known to us as the Global Warming - i dont know. But you have to admit, there has been a lot of whacky stuff, weather wise, going on lately...