How to explore : Hovering over any line will link the four variables — weather, rides per minute, average age, and percent female — and identify the date and weekday selected. Quick takes : The morning and evening weekday peak commutes stand out from weekends, of course. But more interestingly, on New Year’s Day, our warmest of the month, you’ll find a significant swing in average age as night became morning; were our younger commuters out late, sleeping in? Below are smoothed functions of the data.