A glass-half-full type of person would say that fewer riders means fewer people have to worry about the A Line's impending deadline.
That same rosy person would likely point out that weekday ridership numbers rose. Those figures are more important to the overall health of the line since they reflect a pool of likely regular users.
Anyway, here's what RTD's monthly totals look like, with the inclusion of August:
Overall, August's dip represents a 8.78 percent change in the line's ridership.