For eight months a year, there's only one kind of weather in Seattle, they say

They say Seattle in the winter has only 3 kinds of weather. They are:

1. It is currently raining.
   
   
2. It looks like it'll rain soon.
   
   
3. It just rained.
   
   
4. (Unofficial, but I read in a forum once and it makes total sense) It must have rained because the roads look wet and there are puddles, but I never heard or saw it rain, but surely it must have at some point, or where would all that moisture have come from?

It's quite true, summers are different because we actually get a bout of seriously hot season, and then there's no rain for about six months, but otherwise, it's a drizzly city. It never rains heavily, but enough to remind one that if you're going out without an umbrella, there's a good chance of getting lightly rained upon. Everyone expects that, and prepares themselves for light moisturisation. This is what we love Seattle for, after all!