Yes, if you know the upper boundary for the temperature up to which the material stays superconducting. But that's a bit of a problem: this material is claimed to be superconducting to very high temperatures. It just could be that it isn't all that easy to reach a temperature where this stuff stops being superconducting. In fact I see no particular reason in physics why it would have to stay below the temperature at which the material disintegrates. So maybe that part of the effects is simply a reflection of the fact that these superconductors that work well below zero are in fact exactly there because they require a cold environment and once you find one that doesn't that whole aspect goes away, it could stay diamagnetic all the way up to its melting point.