Hilo High School Graduation 2024. High school graduation ceremonies have been scheduled for the class of 2024 with date, time and location information listed below. The first day of high school graduation ceremonies will be may 18, starting with farrington high school at the stan sheriff center and castle high at the blaisdell arena.

Hilo high school main menu toggle. Compare details in 2024 the calculated average standard score was 46.88.