Sound Transit's April numbers are in, showing the effect of the new Link connection between Seattle and the Eastside that opened in late March. The three total light rail lines (one is a streetcar in Tacoma) totaled 155,000 per weekday in April vs. 117,200 in Q1. May was similar.
https://www.seattletimes.com/seattle-new...ght-rail-ridership-jumps-to-no-1-in-u-s/
Link always hits its peak in Q2 and especially Q3 due to tourism and baseball. Apparently these factors overcome the UW being out of session and locals going on vacation. I'll guess 160,000 in Q2 and 170,000 in Q3.