The temps I mentioned were for ground surface. Air temps are between 80-90 degrees, even at night. It's pretty warm here right now.
And yes, I have the UTH on a thermostat (It's set to only heat up to 91 degrees, and I've only seen it top out at about 94 on a really hot day here), and I have three different thermometers for the inside of the tank so I'm pretty sure I have all the right temps. I have two probe thermometers that measure ground temps on the warm side, (one from the thermostat and one from a larger thermostat that also measures air temperature and humidity.) I also have the one thermostat/hygrometer that measures the ambient air temperature. Also I check my apartment's general temperature, just to make sure the readings I'm getting from the tank's setup is right.