how many people are out of town this week? I blame holidays
That could be part of it, but it hasn't always affected attendance - our home attendances through the years on 2nd July:
39,638 - 2011 - a Saturday vs Pirates, 'traditional doubleheader'*, 14,761 over season average
24,897 - 2013 - a Tuesday vs Brewers, 8365 below season average
24,410 - 2010 - a Friday vs Mets, 1842 over season average
24,015 - 2007 - a Monday vs Cubs, 202 below season average
23,823 - 2006 - a Sunday vs Rays, 2757 below season average
23,583 - 2009 - a Sunday vs Mets, 868 over season average
[Nats were either on the road on 2nd July in 2005 and 2008 and were travelling on that day in 2012]
*caused by the most outrageous weather re-scheduling in Nats history (remember the weekday midday match we were supposed to play which was postponed due to rain that never made the slightest appearance?).