The highest ridership for a single day was on the day of the first inauguration of Barack Obama, January 20, 2009, with 1.12 million riders. It broke the previous record, set the day before, of 866,681 riders. June 2008 set several ridership records: the single-month ridership record of 19,729,641 total riders, the record for highest average weekday ridership with 1,044,400 weekday trips, had five of the ten highest ridership days, and had 12 weekdays in which ridership exceed 800,000 trips. The Sunday record of 616,324 trips was set on January 18, 2009 during Obama's pre-inaugural events, the day the Obamas arrived in Washington and hosted a concert on the steps of the Lincoln Memorial. It broke the record set on the 4th of July, 1999.