In reply to Beardyman:
It all depends on your ability to withstand discomfort & pain, obviously helps to be fit prior to the break as well as being very motivated & determined to get back to normal.
I climbed very quickly after cast removal 3 months, but very easy & avoided slab routes.
Walked lots uphill on a tread mill after 3 months, gradually increasing both the speed & angle of inclination over the following months.
Skied after 5 months
Started gentle interval running after 7 months on the tread mill.
Ran outside for the first time after 8 months.
Sure that the biggest aid to recovery was to get outside & walk along with various stretching exercises.
Its also about managing your head, this will restrain your urge to try to climb, especially lead, but you will know when you are ready to.
By the way, my consultant informed me that I would always walk with a limp & be in constant pain, discomfort with my smashed ankle, its up to you to prove him wrong!
It has taken until recently to not be aware of my ankle (8 months!)
Good luck & stay positive