(boston and ny both get more rain per annum)
Let me begin by explaining that I go to the UW's rival school WSU. That being said my commments are mostly directed towards the weather in the area.
While what Zorak says is true, there is a little more to the story. The total amount of rain is less than Boston and NYC, but it rains for a longer period of time in Seattle. There is usually a constant state of drizzle, no real downpours. (The weathermen love the phrase "Rain turning to showers, with the occasional sunbreak.") And for those brief moments when the rain stops, the sky remains grey and depressing. Sunbreaks are the rare occasions when the sun makes an apperance for more than two seconds. You will also hear that the "mountains are out" meaning that the mountains are visible because the clouds have cleared slightly.
While it is true that the summers are usually nice, the summers are very short. I usually tell people that we have 2 seasons: Rain and August.
Further the mascot of the UW is a Husky. Everyone knows that a Cougar could beat the tar out of a Husky.