Okay where to start.....

1) Temperature. My UTH is working and is hooked up to a reptitemp 500R thermomstat. I have a acurite digital thermometer. So my problem is...the thermostat will shut off when the temp gets to 93.5 but when the temp drops down it will not come back on untill it reaches like 90!

2) Theres no water bowl in my tank and my humidity is at 66%! How do I bring this down??