Well I tried it again tonight with a full battery and about the same air temperature and sure enough it took more power to get the heli to hover.

One thing I did learn was that you can quickly lose control of the helicopter outside where there are no boundries. I've done all of my practicing in an 8x10 foot area inside up until now and had great control. Outside it very quickly drifted away from me a number of times. So for all of you newbies out there reading this post, practice in a small area so that you learn better control. Outside, you have a much bigger box to work within and can quickly lose control on your heli.