This shit is all normal. It ain't nothing crazy until it snows in San Diego, the city of SD, not the fucking mountains. Once it snows here, then I know for sure that something is up with Earth's climate. Once in a while it gets slightly below freezing over night, but shit still don't snow. haha
You guys are all up North, I see it as normal. Not common, but it has the capability of snowing where you guys live. And Vegas, cmon, it snows atleast once during each winter, not uncommon. I really think it's not possible in SD. I want to get proven wrong though, I want to see some fucking snow fall here for once and on my pad.