What is the temperature for storing blood?

When you store human blood and its components, there's little or no room for error. Red cells and whole blood, for instance, must be maintained strictly within the range of 1.0 to 6.0 degrees Celsius or 33.8 F to 42.8 F, with little or no tolerance for exceptions. If temperatures pass outside that range, the stored blood may not be able to be properly transfused.