They should just use X.5 in the F6 and CLI forms.
I could understand sticking with sig figs and not wanting to create decimals or fractions when averaging 2 integers, but they contradict that line of thinking at the end of the month when determining the monthly average temperature. They sum the max and min integer temps, take an average, and then divide by the # of days and end up with precision down to the tenths place. If you're going to lie there, at least lie to me in the dailies for the F6 and CLI too. Then yesterday we could've had a mean of 68.5F with a normal of 69.5F and a -1F on the day to talk about on the news.