Body temperature normals
Normal body temperature; Temperature - normal
Normal body temperature varies by person, age, activity, and time of day. The average normal body temperature is generally accepted as 98.6°F (37°C). Some studies have shown that the "normal" body temperature can have a wide range, from 97°F (36.1°C) to 99°F (37.2°C).
A temperature over 100.4°F (38°C) usually means you have a fever caused by an infection or illness.
Body temperature normally changes throughout the day.
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Sullivan JE, Farrar HC, Section on Clinical Pharmacology and Therapeutics, Committee on Drugs. Fever and antipyretic use in children. Pediatrics. 2011;127:580–587.
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