Me whenever the weather gets even slightly gloomy.
For real though... I don't consider myself to be particularly prone to seasonal blues, but whenever I'm driving down a gray, ugly expressway with a gray sky and I'm surrounded by ugly city architecture that's either downright brutalist or adjacent, I start to think like this guy.
I just remember that above it all, it's perpetually a bright, sunny day. Flying out of an airport under these conditions and emerging above the cloud layer into sunlight is downright cathartic.