A system includes a memory array, a thermometer, and control logic, operatively coupled with the memory array and the thermometer, to perform operations including causing the thermometer to obtain a first temperature result, monitoring a time since obtaining the first temperature result, determining whether the time satisfies a threshold time condition, in response to determining that the time satisfies the threshold time condition, causing the thermometer to obtain a second temperature result from an automatic temperature reading, determining a difference between the second temperature result and a previously stored temperature result, and filtering the second temperature result based on the difference to obtain a new stored temperature result.