D.C. Cherry Blossom 2016: Peak Bloom Dates Revised Again

WASHINGTON, D.C. — The forecast to see the beautiful cherry blossoms in Washington, D.C., at their peak has changed … again.

The prediction for the beginning of peak bloom this spring has changed and instead of beginning this weekend, it has now been revised to Wednesday, March 23 and Thursday, March 24, according to the National Park Service.

The peak bloom date is defined as the day when 70 percent of the Yoshino Cherry blossoms are open, the park service notes. Peak bloom varies annually depending on weather conditions. The DC Metro area could see a few snowflakes Sunday, the first day of spring.

You can also check on cherry blossom activity via the"Cherry Blossom Cam."

It's an unusually early start, but not unprecedented. The earliest peak bloom on record is March 15, 1990.

The annual National Cherry Blossom Festival takes place this year March 20 – April 17.

The festival includes three weeks and four weekends of events featuring diverse and creative programming promoting traditional and contemporary arts and culture, natural beauty, and community spirit.

The 2016 Festival commemorates the 104th anniversary of the gift of the cherry blossom trees and the enduring friendship between the United States and Japan. Clickhere for the latest updates, and here for a full list of Festival events.

Here's more about the science behind the cherry blossom peak bloom dates, according to the National Park Service:

• The peak bloom date is defined as the day when 70 percent of the Yoshino Cherry (Prunus x yedoensis) blossoms are open. Peak bloom varies annually depending on weather conditions. The most likely time to reach peak bloom is between the last week of March and the first week of April.
• The Yoshino trees typically bloom for a period of several days. The length of the blooming period depends on weather conditions. Cool, calm weather can extend the length of the bloom, and a rainy, windy day can bring an abrupt end to the ephemeral blossoms. A late frost can prevent the trees from blooming at all.
• Forecasting peak bloom is almost impossible more than 10 days in advance. The cherry trees' blossom development is dependent on weather conditions, which are inherently variable. National Park Service horticulturists monitor bud development and report the status of the blossoms.

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