This read-only integer reports the hysteresis margin, in degrees Celsius, used by a temperature sensor to avoid flapping between normal and out-of-range status near the limit. Administrators can use it to understand how much a temperature must drop below the limit before the sensor's status reverts to normal. For example, a hysteresis of 5 combined with a limit of 60 means the temperature must fall to 55 before the sensor clears a degraded flag.