what's strange is that, i always thought that CA weather was like FL weather, always really warm, but when i went there, it was quite cool, in septemeber. i guess it's just that the weather stays consistent throughout the year, no extremes.
were you in norcal or socal? it really doesnt cool THAT much in sept but today is very unusual.
i was in san fran & LA, that's south, right? haha i'm bad w/ geography.
SF is northern California. LA is southern. Oh, and it's *always* cold in SF. (Never freezing, just cold.) You'd probably need a jacket there at night even in the middle of the summer.
Interesting... Looks like you were in SF during the warmest time of the year:
http://www.weather.com/weather/wxclimatology/monthly/graph/USCA0987?from=36hr_bottomnav_undeclared