Cherry blossoms dominate, but President Obama's first inauguration helped to propel the Metro system to its busiest day in history, followed by the Women's March on Washington. Here are the system's six busiest days, in terms of trips taken by passengers.
1. Jan. 20, 2009: President Obama's inauguration - 1,120,000 trips
Tony L. Sandys for The Washington Post
Metro set an all-time record for rail ridership on Inauguration Day on Jan. 20, 2009, with riders taking about 1,120,000 trips on the system, Metro officials said.
2. Jan. 21, 2017: Women's March on Washington - 1,001,613 trips
Oliver Contreras for The Washington Post
The Women's March on Washington led to Metro's second-busiest day in history, as hundreds of thousands of revelers poured into the District, taking more than a million trips on the system in 19 hours of service.
3. April 2, 2010: Cherry blossoms/basketball - 891,240 trips
Metro counted 891,240 trips on April 2, 2010, which the transit agency attributed to heavy crowds for the Cherry Blossom Festival and to people attending a Washington Wizards game -- a loss to the Chicago Bulls (87-95) at Verizon Center.
4. April 1, 2010: Cherry blossoms/hockey - 877,890 trips
Metro recorded 877,890 trips on April 1, 2010, which Metro officials attributed to the Cherry Blossom Festival, with help from a Washington Capitals win over the Atlanta Thrashers (2-1) at Verizon Center.
5. April 10, 2013: Cherry blossoms/baseball/basketball/rally - 871,432 trips
Kevin Ambrose for The Washington Post
Metro recorded 870,171 trips on April 11, 2013, which officials attributed to the cherry blossoms in peak bloom, a Wizards game (a loss to the Miami Heat) at Verizon Center, a Nationals game (a win over the Chicago White Sox) at Nationals Park and an immigration rally at the U.S. Capitol.
6. April 7, 2010: Cherry blossoms/baseball - 867,624 trips
Metro recorded 867,624 trips on April 7, 2012, which transit authorities attributed to heavy crowds for the Cherry Blossom Festival, a Washington Nationals game (a loss to the Philadelphia Phillies) and unseasonably warm weather conditions.
GRAPHIC: The Washington Post. Created April 15, 2013, updated Jan. 23, 2017