And this is 11-11-09 during the National Anthem, according to your link.
Re: your comment on the rainfall... Yes, it was raining all day. The temperature in the D.C area on November 11 ranged between 46 and 60 degrees, with rainfall for the day of .94 inches.
Would I be wrong if I thought most reading the thread were given the impression the photo was taken on Veteran’s Day given the timing? More fodder for snopes.com.