This tree is blooming two weeks earlier than last year

What is this tree whose annual flowering time is two weeks sooner than last year? I've been photographing the same trees for two years and this year was surprised to see one tree bloom three days ago that last year didn't bloom until April 25-26. And the similar tree next to it that bloomed on April 20 last year hasn't shown any indication of blooming yet this year. See
http://cpacker.org/20090426.jpg
http://cpacker.org/20100413.jpg
The full time lapse series for last spring is at http://cpacker.org/trees
-- Charles Packer http://cpacker.org/whatnews mailboxATcpacker.org
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Charles Packer wrote:

From this distance it looks like a flowering plum tree. I'm in SW Michigan, and everything here is blooming about two weeks early, too. This is an honest-to-God early spring this year.
Tony
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wrote:

It could also be a callery pear. They can get a bit unruly at times and are one of the earlier bloomers.
We are 2 weeks early this spring in Northern NJ, too.
Boron
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In my area of PA, they are worried that the apple trees bloomed way too early. We have had several nights of frost with more to come since the trees went into bloom. Needless to say, there goes the apple harvest and it looks like we can expect the prices of fruit to be sky high! It's only April and we had at least two weeks of June weather which I suspect is the culprit.
Rich
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