Since I have a season pass I will probably just hit Nozawa until I can't be bothered anymore.
In years past the last decent snow has usually been end of March or early April. If I wanted to I can board on slush until May, but since I not much of a park guy I tend to close out my season early April.
With a bit of luck that might mean 3 more trips.
where is the coldest place in Hokkaido that stays open into April?
Do you still get some snow up there till then?