I repeat myself, but monthly ridership numbers are highly sensitive to small sample size issues, seasonal variations, and so on. Drawing conclusions from day-to-day, week-to-week, and month-to-month comparisons is perilous, to say the least.
Yet commenters like to do just that, so I’m pleased to report that December’s weekday ridership numbers (pdf) increased from November’s 14,399 to 14,639, or less than 2%. Saturday (12,626, up 28%) and Sunday (9,853, up 26%) were much higher than November. All three numbers are well off the October all-time highs, generally a strong month for transit ridership.
If that’s not a small enough sample size for you, post-Airport Link the weekday mean was 16,684, which would be an all-time high if taken over a whole month. Of course, that mixes a heavy air travel week with a light working week, so making sense of all this will simply have to wait.
Comment from Ben: It’s worth noting that the week after Christmas saw much higher numbers. Excluding New Years Eve and New Years, the last week’s average was over 18,000. I suspect we’re looking at an 18,000 or higher daily average in January.