Our Yard: Vortex of No Growth?

The most recent signs:

• Our daffodils are just leaves and no blooms while our next door neighbor's daffodils have been blooming for a week.
• The cherry trees in Washington DC are blooming. We have the same variety and it is no where near ready to bloom.

I understand that DC is probably a little warmer (due to being more urban and being slightly further South) than our yard but what is the difference between our flowers and the ones blooming not 3 feet away in the neighbor's yard? Even ones that get the same sun exposure are not blooming. Perplexing.