For me, it depends on the nature of the book. If it's derived from my own experiences, then 1000 words an hour is not out of the question. However, if I need to do research, then probably about 600 words an hour to make certain that all is correct with the novel.
Also, I tend to self-edit after writing, then performing a full edit of the book once it's done.
Those are jaw-dropping word counts from some of you.
One of my problems is getting caught up in research and planning - the pitfall of the fantasy epic author who tries to devise new languages, draw new maps spin new cultures and races out of myth, history and his imagination - you get the idea.
I have eighteen books on Amazon. I have been writing and saving them up until last year. Don't ask why! But my first book, over 10,000 words took me three years! But then, I was working full time. Now, I am disabled and have more time to devote to writing. I just finished Gypsy Jean, 13,000 words and after edits, cover, formatting and more edits, it took two days! But, I have all the time in the world!
My longest novel, 88,000 words took me a month to write..I don't think it's important to get ER dun, as much as it is to " write a good story"! If it takes years, so what? Two days? Great...don't put a time limit on writing.
I have several books " in stages" so when I get writers block, I just switch to another work in progress...
Good luck and stop watching the clock!
I'm usually 4 pages a day in a notebook, around 1000 words I think. I have found I'm more prolific if I work two stories, writing one until I'm drained and then switching to the second one. When I am on vacation, etc, my word-count goes up. I have no idea how long it takes because I tend to put work away and then pick it up again, so I have a WIP that I've been working on for a year, one that I started 3 years ago and plan to get back to this year, and then my current one which has only been in the works about 3 months. That one I'm hoping to publish by August, including a few months of downtime on it before editing.