Blue skies!
Everybody knows that Seattle gets clouds and rain 90% of the time.
Not to mention being shaded by taller surrounding buildings. The trees will end up being “mall trees” such as ficus that will need constant spraying to keep the scale off and they will drop their leaves a couple times a season.
Seattle has had its best spring and summer this year since 1975. That might have thrown the architects in their elevational views of the buildings.