Pictures: Cherry Blossoms in Washington

President and Mrs. Nixon enjoy the cherry blossoms near the tidal basin April 14, 1969 in Washington D.C.  (National Archives/Handout)

Under a canopy of cherry blossoms in Washington DC former U.S. President Bill Clinton went for a morning jog in April of 1994 with George Hirsch, publisher of Runner’s World magazine, and members of a running club from Arkansas.  (Joshua Roberts/Getty Images)

President George W. Bush made a statement to the press April 2, 2000 in front of Cherry Blossoms at the White House regarding the detention of a U.S. military plane and its crew by China following a midair collision.  (Mark Wilson/Getty Images)

Japanese tourist Yayoi Nagayama poses for a photo ON March 25, 2011 under cherry blossoms at the Tidal Basin in Washington, DC. Nagayama, 25, came to New York for a vacation on March 3, but feared for friends and family back home in Fukushima, the site of a damaged nuclear power plant now spewing radiation.  (Mandel Ngan/Getty Images)

Cherry blossoms are seen on a tree at the Tidal Basin in Washington, DC, with the memorial to US President Thomas Jefferson in the background.  (Karen Bleier/Getty Images)