Is there any tool or method that will load a localhost page a number of times, and return the averaged data for load times, onload events, Dom ready events, etc?

I'd like to work on page speed optimization, but need a baseline before I begin.

I have used both Google analytics and Webmaster tools, but I'd like an automated solutions that runs locally.

My ideal solution would be a program or script that would take the path/file, number of iterations, and then take several minutes to load the page n times without cache and crunch numbers to create a baseline.