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The pollen detector on the roof of Allegheny General Hospital (AGH) in Pittsburgh has detected moderate amounts of tree pollen in February for the first time ever.
Washington’s centennial cherry blossom bloom will probably take place early this year and happen from March 22 through early April,
The average peak bloom date is April 4, but the capricious blossoms have peaked as early as March 15, in 1990, and as late as April 18, in 1958, according to DeFeo’s records.