Traynor scored a career-high six goals in Sunday's victory.
"We have the best chemistry probably across the Big Ten."
The Nittany Lions recorded multiple hat tricks in its upset over the Terrapins.
Kristin O'Neill surpassed her single-season goal record as she led Penn State to a tight victory.
Northwestern's Izzy Scane scored six goals to reach her 60th of the season.
Despite a comeback effort, the Terrapins' five-goal lead in the second period proved to be too much to overcome.