If a planet orbits at the Outer Edge of the HZ, what state is water most likely to be in due to weak solar radiation?

Answer

Frozen solid

The Outer Edge, or snow line, is the point where solar radiation is so weak that temperatures drop significantly enough for water to freeze permanently on the surface.

If a planet orbits at the Outer Edge of the HZ, what state is water most likely to be in due to weak solar radiation?
Spaceastronomyhabitable zoneGoldilocks