So far I've entered the load information for a small town as well as a 1MW Bonus Wind turbine and a Grid component.  Unfortunately after entering the load information (for each hour of 24 hours), HOMER says the annual average is 11,534 kWh/d.  The annual average is suppose to be 11,635 kWh/day, which equates to 484.815kWh each hour.  I've double checked that I've entered everything correctly and there is still a discrepancy.

Am I just doing something wrong or is there a reason these values don't add up?

You are not doing anything wrong.  The discrepancy comes from the noise that HOMER adds to your profile to make each day unique. If you set the daily and hourly noise parameters to 0%, you should get exactly the average that you expect.  When you add noise or randomness, HOMER adds random variability to the load data, which very slightly alters the average. 

If you want the annual average to be exactly 11,635 kWh/day, you can enter that value for the "scaled annual average".

Note that adding noise is a good idea because it is more realistic, and because if you fail to do so you will significantly underestimate the annual peak load.  For details, please look up "noise in load data" in the index of the Help system.