Fever Ranges, 12 and Older

Temperature varies a little depending on how you measure it. For adults and children age 12 and older, these are the ranges for high, moderate, and mild, according to how you took the temperature. Oral (by mouth) temperature High: 104°F (40°C) and higher Moderate: 100.4°F (38°C) to 103.9°F (39.9°C) Mild: 100.3°F…

Fever Ranges, 12 and Older

Fever Ranges, 12 and Older

Temperature varies a little depending on how you measure it. For adults and children age 12 and older, these are the ranges for high, moderate, and mild, according to how you took the temperature.

Oral (by mouth) temperature

  • High:104°F (40°C) and higher
  • Moderate:100.4°F (38°C) to103.9°F (39.9°C)
  • Mild:100.3°F (37.9°C) and lower

A forehead (temporal) scanner is usually 0.5°F (0.3°C) to 1°F (0.6°C) lower than an oral temperature.

Ear or rectal temperature

  • High:105°F (40.6°C) and higher
  • Moderate:101.4°F (38.6°C) to104.9°F (40.5°C)
  • Mild:101.3°F (38.5°C) and lower

Armpit (axillary) temperature

  • High: 103°F (39.5°C) and higher
  • Moderate:99.4°F (37.4°C) to102.9°F (39.4°C)
  • Mild: 99.3°F (37.3°C) and lower

Credits

Current as ofJune 26, 2019

Author: Healthwise Staff
William H. Blahd, Jr., MD, FACEP - Emergency Medicine
Kathleen Romito, MD - Family Medicine
Adam Husney, MD - Family Medicine
H. Michael O'Connor, MD, MMEd, FRCPC - Emergency Medicine

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