Medical research hasn't determined an exact correlation between oral, rectal, ear, armpit, and forehead temperature measurements. Generally, the correlation of temperature results are as follows: The average normal oral temperature is 37°C (98.6°F).
In this regard, what is considered a fever on a temporal thermometer?
Your child has a fever if he or she: Has a rectal, ear or temporal artery temperature of 100.4 F (38 C) or higher. Has an oral temperature of 100 F (37.8 C) or higher. Has an armpit temperature of 99 F (37.2 C) or higher.
Do you need to add a degree to a digital thermometer?
Oral and axillary temperatures average about .5 F to 1.0 F (.3 C to .6 C) degrees below rectal, ear, and temporal readings. Add .5 to 1.0 when taking orally or under the arm to determine the comparable rectal temperature. Have a separate thermometer to use for oral than for rectal.