How fast can a werewolf in twilight run?

None of the books in the Twilight series say exactly how fast Edward Cullen, or any other vampires, can run and Stephenie Meyer never said, either. However, the books did say that Edward can run as fast as a mountain lion, and mountain lion's can run anywhere from 35-45mph.

In the movie adaptation, Edward can visibly run a good deal faster than 45mph. More like 450mph!