If you check out my chart (current cycle and last cycle) you'll see I have the same problem... I am pretty sure it would be different if I bought a thermometer which goes to two decimal places, but I keep forgetting and don't want to change thermometers midway through a cycle... My FS looked at it and said it looks fine, so I wouldn't worry too much. It would probably be different with a two-place therm. but I don't think its a really big deal.