I like rainy, dark days. It's dramatic, thoughtful weather. Instead of being stupefied by the sun, you can reflect and meditate. I think it's the same reason northern countries developed quicker. The cold, wet weather forced them to think about how to shelter themselves and when the weather forced them indoors, they conversed and socialized and did other mind-stimulating activities (ironically, all that progression led to the most regressive thing ever, the television).