iontrap,
The number of miles per day is not significant; the key factor is: What does your owners manual recommend for the temperatures you will experience during the oil change interval. If it 5WXX is "recommended" that is what you should use. If it gives you the choice, given the climate in Georgia, I would use a 10WXX and if you are "using" oil and no longer in warranty, I'd go with a high quality 10W40.