I hit lots of snow in '05 in April. '05 was the heaviest snowpack in SoCal history. (1st time ever the Summit cabin on San Jacinto was burried) This was also the year PCT thru-hiker John Donovon died after getting lost above Idyllwild on the Trail.
Route finding can be as big an issue as sketchy traverses. The plateau above Devil’s Slide trail where Donovon got lost (Taquitz Valley, etc.) is fairly large, with lots of trees and very few safe routes down. In mid April of '05, this area was completely snowbound all the way through Fuller Ridge to Black Mountain. I carried an ice axe through that section, but never used it. (meaning I didn’t fall on the sketchy traverses - I was glad I had it)
Also, from Mission Creek Camp (PCT mile 239) all the way to Deer Spring (mile 255.9) was buried. I found it easier to bushwack the actual Crest rather than the dangerous sidehill where the trail was supposed to be.
Finally, a few miles before Wrigtwood & about 15 miles of Trail around Baden-Powell were buried. The Angeles Crest HWY below Baden-Powell had snow drifts over 20 feet high!
I started ‘early’ (April 8th) in '05 on this crazy snow year, so I doubt you snow conditions anywhere near as heavy this year.
I don’t think you would need an ice axe on an average year. If you hit an area that is too icy (normally early morning, but I didn’t run into this problem in '05), just wait until the sun softens the snow.
Have a great hike!
freebird