Should add, many people who move from sunny climates suffer from depression when they move to Western Wa or Oregon due to too many overcast days and rain. A real issue and one to seriously consider. My wife would go freakin nuts on that side of the mountains with that little sunshine. I would be right behind her to the nut house after I snapped and evaporated several liberal weenie niehbors in a flurry.
You just need to get a Happy Light. Actually, my brother lived in Portland for many years and he had a terrible time with winter depression. I have a son in Seattle who does, too. My mother got him a Happy Light for Christmas to see if it helps. I suspect that a plant grow light would do the same thing.