I am going to assume that you are working with a Realtor:
They can tell you what the average is for your area, but,
The houses that sell quickly are priced right, looking good, and marketed well!
Open Houses with lots of signs, Staged for the showings, smell of fresh baked bread, etc.
Set your own goal of 60 days and do whatever is necessary to achieve that; don't aim for the average.
Good luck and may God Bless