The first trees to bloom every year are my Manchurian apricots.
Normally they bloom in mid April but I have seen them bloom at the end
of March some years. Finally, we have had 2 days in a row that were
approximately 80 degrees. Last evening, I noticed a few scattered
flowers open. By the time I came home for lunch today (May 15th) the
apricots were pretty much in full bloom.
I think the flowering of my apple trees will mostly be in June this year.