I've moved to a city where "perpetually overcast, with rain every day" appears to be the norm. After living here for a year, I can't remember a straight week with good weather, like we appeared to have all the time back in Oslo. The weather is always changing, and never for the better. Now I consider the weather great if the sidewalks are dry (because generally, the weather doesn't get better than that). I've got the impression that generally, it rains every day, though often not for more than an hour or so. Still, incredibly annoying as you have to bring a raincoat wherever you go, no matter how nice the weather is when you leave the house.
Good thing we're below the Arctic cirle, though. I couldn't have handled eternal rain AND darkness all winter.