Temperature in the anus (rectum/rectal) is at or over 37.5–38.3 °C (99.5–100.9 °F)[6][7] Temperature in the mouth (oral) is at or over 37.7 °C (99.9 °F)[24] Temperature under the arm (axillary) or in the ear (tympanic) is at or over 37.2 °C (99.0 °F)