I have no complaints about the clime here in San Jose although there are times where I'd love for it to be the upper 90s ... on the way in to work!!! Wow!!
I live in south San Jose where it rather regularly gets to 105. But for the past couple summers it's not been hot enough to turn on the A/C except for maybe 2 or 3 days all summer. It cools off nicely at night.
Overall, I wouldn't trade the Bay Area climate for anything. I like riding my bike during the extremes b/c it gives you something to look back on later.