One word: Definitely. Although I'm never consciously aware of it.
When I was in Las Vegas, I found that I was overall in a better mood and intellectually stimulated.
When I came back to Cleveland, which is in an area that is very inconsistent in its climate, everything just got depressing. In Cleveland, one minute it's pretty and sunny, the next it's rainy and murky. Perhaps that has some sort of link to my bipolar tendencies.
I don't really think that the weather patterns are directly adjacent to my moods, but rather the overall climate.