Can Summer be Getting Close?

This week in the garden, despite the frost, seems to indicate that summer is on its way.  I am cutting the grass every five days; the cool nights are really helping it grow.  All of the trees are finally starting to leaf out.  The Snowdrift crabapples are in bloom.  I took this photo from the deck looking over the roof of the house.  I never even think to look at this tree from this direction.

 

It is not fully open yet, but here is a close-up from last Spring.

I am sure it won't be long before I am complaining about the heat.