The task Madhu pointed to is something we hope to get to soon, but we may find that we don't have enough hardware to host the extra data on the API.  Are the dumps a bad solution for this problem, though?  They're not too big in this case and not to hard to parse through for the small time period you're talking about.  The format is pretty simple too, I think you should be able to download and do everything you need with grep and awk.  Or python if that's easier.