That's brutal for the fruit trees..
I have some hazelnuts here that are threatening to bloom catkins soon, and that's not good for them. Lots of frost to come.
Many of the trees I planted 20 years ago are maladapted to this climate one way or another. Some bloom too early. Others leaf out so late, they barely have time to grow.
Late flowering genetics would be a boon for nuts and fruits here.
We also have had a cool April so far, with dustings of snow and freezing rain or drizzle, not much sunshine at all. Running a few degrees below "normals" or "averages", and still too cool and wet to plant grains. Looking for 3 days with min/max average at least 2C, or at least a dry thaw instead of the incessant fog and precip with freezing nights. Way too wet to do anything to the ground, but it does seem to have thawed it all the same.
The ground froze quite deeply this winter due to having repeatedly thaws with rain and then plummeting to -10C within the day. Very scant occasional snow cover is all we got.