Metro's Busiest day by month

 Below is a list, as best available, of the busiest day of each month on Washington's Metrorail system.

Jan 1,120,000(est)   20th     2009   Obama Inauguration Day

Feb    798,000             18th    2010     Week after Snowmaggedon

Mar    845,669              23rd 2012 CBF, Hockey (18,506)

Apr     891,240              2nd     2010    CBF, Wizards (18,002)

May    801,000             20th     2010    Baseball (23,612)

June   856,578             8th       2010 Strasburg debut (40,315), Concert

July    854,638           11th     2008 Baseball (33,653), Women of Faith

Aug    797,000             1st       2008     Baseball (30,572)

Sept   787,000             18th     2008     Baseball (25,426)

Oct    825,437               30th    2010    Rally to Restore Sanity and/or Fear

Nov    786,000             14th     2008     Hockey (18,277)

Dec    788,000             1st       2012     No Event

For October, the day before the Rally to Restore Sanity may have had more riders, but the information on that is sketchy. Purple days are estimates based on a less than 100% reliable tool