At least you're in the south bay where it's a little warmer. I'm up in the East Bay by the water where I feel the chill from the wind. Kind of neat though, my work is north by the bay and I live south away from the bay. When I leave, it is still dark but mild temp. When I arrive and get off the train, there is daylight but I feel a slight breeze and colder air.

Just wait for our summer pattern to arrive. Dark gloomy cloudy morning with no sun until almost noon. If that doesn't mess up a person bio season calender, then I don't know what will.