 Elsewhere locally, the Blood Bank says that about 200 donors are needed every day to fill the needs of the 18 civilian hospitals that they serve across the state and that now they only have a one-day supply. Blood donations usually drop by about 15% during the summer because schools are out and folks usually travel around this time. Blood Bank of Hawaii Donor Services Senior Recruiter Tracy Takahara told KHUN they like to have a comfortable three-day supply