It doesn’t rain as much as people think it does. The area west of the cascade mountains is a temperate rainforest. It rains more frequently there than it does on the east coast, but the temperature and humidity are also much more moderate year round. Climate change is affecting all of those things though.
If you love NYC, you probably won’t love Seattle. If you prefer the outdoors, but still want access to city type amenities, the PNW can’t be beat in my opinion.
It’s a very personal thing I think. I personally love the PNW, but I also pretty much hate NYC if I have to be there for more than a couple of days at a time.
A lot of NYers really buy into NYC being the “greatest city in the world” and can’t fathom why someone wouldn’t want to live and work there. Different strokes for different folks.