The Red Cross says it received 50,000 fewer blood donations in June. Despite the fact that the group says it must collect 17,000 pints of blood every day to meet nationwide demands.
The Red Cross believes unseasonably warm weather may have contributed to the shortage in blood donors.
Many regular donors may already be involved in their summer activities and not taking time to give blood or platelets. They add that only half the blood products that were in supply this time last year are currently available.