I think you missed the point. The valley used to be (still is actually) a windswept burning desert half the year. Which is part of what makes its 60's self comparable to Detroit.
Sorry, but for all of Valley's problems, the above characterization couldn't be more wrong. You might be thinking of a part of California east of I-5, but Valley as it pertains to the tech hub couldn't be more pleasant from the climate perspective.
You might be right, but as a San Franciscan, who had to stop by the office in Palo Alto today, the sun did feel a bit oppressive =)
I feel like a lot of people don't realize how gloomy and cold SF's microclimate is.