The National Cherry Blossom Festival is an annual two-week event that celebrates springtime in Washington, DC as well as the 1912 gift of the cherry blossom trees and the enduring friendship between the people of the United States and Japan.

Here are some of the highlights:
Family Day & Opening Ceremony – Saturday, March 27, 2010
National Building Museum
401 F Street, NW
Metro Judiciary Square, Red Line
Family Day – 10am-3:30 pm
Opening Ceremony – 4-5:30pm

Smithsonian Kite Festival

Smithsonian Kite Festival – Saturday, March 27, 2010
Washington Monument Grounds
10 am-4 pm
Kite Festival Official Website

Fireworks Display – Saturday, April 3, 2010
Southwest Waterfront
Music and activities begin at 5 pm
Fireworks at 8:30 pm

Cherry Blossom Parade – Saturday, April 10, 2010
Constitution Avenue from 7th to 17th Streets, NW
10 am- 12 noon

Helpful links:
Cherry Blossom Festival Website
National Park Service Bloom Watch
Metro Website (use the trip planner feature on this website to find the metro options, taking metro is much better than driving for the festival events)