normal temperature range reading for armpit
1 An ear (tympanic) temperature is 0.5Â°F (0.3Â°C) to 1Â°F (0.6Â°C) higher than an oral temperature. 2  An armpit (axillary) temperature is usually 0.5Â°F (0.3Â°C) to 1Â°F (0.6Â°C) lower than an oral temperature. 3  A forehead (temporal) scanner is usually 0.5Â°F (0.3Â°C) to 1Â°F (0.6Â°C) lower than an oral temperature.