J.,
While there are many things about California I love, I don't think moving there will solve the problem!!
Winter isn't over in Chicago until at least February...so that you get "grumpy" from October to January?? There might be something else going on?? Depression maybe? Sorry - but one of your other posts is about the stress of the Holiday's, right? So my guess is after Halloween you start getting depressed knowing what is coming up and what you are dealing with in way of family issues.
Go to your doctor...get your hormones and blood checked for deficiencies.
Columbia University did a study on SAD..
http://www.columbia.edu/~mt12/blt.htm