Indeed. Between the end of autumn and middle of spring, my life basically shut down and I became borderline depressed for that period every year, until the sun

Indeed. Between the end of autumn and middle of spring, my life basically shut down and I became borderline depressed for that period every year, until the sun started showing up and you no longer only had 4-5 hours of sunlight per day anymore. And when I moved to a place with more even seasons (and more sunlight overall), I no longer experience this seasonal depression, so yeah, I'd definitely put "good weather" close to the top on the list on how to improve my life, and subsequently, it's a strong indicator on where I can live in the world.