I actually did record the temp and even filled out the cal course paperwork. I just have not submitted it.
I haven't seen anywhere a discussion of acceptable tolerances. For example, when my assistant and I measured the cal course, there was a 1 inch difference between the out and back measures. I thought that was pretty good (for a 300m course) but I have no data on the normal range of differences. So how good is 1 inch over 300m?