Beginning of March wouldn’t be a bad plan this winter, given the meager precipitation near the border and up through the Sky Islands. Approaching Phoenix and on up through the Mazatzals and over the Rim it’s been a more decent winter (average to potentially above average snowpack in places). So it might bode well for following a more relaxed pace, in order to allow the snow some time to coalesce and melt. The drought in the south could become borderline unprecedented if currently trends keep up, so I think the point worth emphasizing right now, as things currently stand, is to get through this region as early as possible, before the heat increases your need to pack a lot of water, and before high fire danger threatens to force various detours and closures, potentially.
blisterfree