There were some differing opinions in another thread, but my answer would be yes. Explanation being that the leaves will be pushing soon for you in Dallas, at that point you are in the same situation as a "leafed tree"( which really shouldn't have root work done - assuming diciduous for this - evergreens will have foliage when root pruned and repotted, or it will probably turn into an ever brown). My point being that with the leaves out and being in the sun, IF you don't pay attention to it you could run into the situation of the roots not being able to keep up with the requirements of the leaves. Once you get them out you may not have the time to pay enough attention to the tree during it's recovery to notice that the roots are being pushed too much.
Again the wind can be a big culprit here, wind can dry out your soil rather quickly, new fine root growth is very succeptable to drying out, which is NOT a good thing.
So my advice is to place it/them in a spot that gets a few hours of morning sun, and be protected from the wind. I think it was Jason who made the point regarding warming the pot/soil being good for it, here I agree, and say that the early sun is good in that it will warm the soil some in the morning when it's probably still chilly, which helps support root growth. The rest of the day the air temps should be enough to keep the root zone in a good temp range.
Hope this reads the way I sounded in my head.