An amusing joke, but while rain is frequent in the winter in the PNW (Pacific Northwest USA) the rain is often light. Seattle residents tend not to use umbrellas unless the rain is particularly heavy. It might not be a very good power source.
Now that I'm back in California I get a lot of weird looks in the office when I go out into the rain on purpose. It's a lot easier to appreciate the rain here when it's not raining nonstop for nine months.
[0]: https://en.wikipedia.org/wiki/Ketchikan,_Alaska#/media/File:...