A sea of white filled Beaver Stadium for the 15th full-stadium White Out.
McClary committed the day after the 2023 White Out.
The Nittany Lions moved up in the rankings for the first time this season.
Theo Johnson, Tyler Warren, and Khalil Dinkins combined for three touchdowns in the Nittany Lions win.
"It was raining and it was still filling up to the brim in the stadium. Their energy is infectious. And I love them and I appreciate all they do for us."
Penn State's defense had another near-perfect outing against Iowa on Saturday.