The normal body temperature in Fahrenheit is generally accepted as around 98.6°F. However, studies show a normal range can vary from about 97°F to 99°F in adults, depending on factors such as the person, age, activity, and time of day

. Key points about normal body temperature in Fahrenheit:

• Average normal temperature: approximately 98.6°F (37°C)

• Normal range: roughly 97°F to 99°F for adults

• Temperature varies by measurement site: rectal temperatures tend to be higher than oral, which are higher than underarm or forehead readings

• Some recent research suggests the average normal temperature may be slightly lower, around 97.5°F to 97.7°F, possibly due to better health and lifestyle changes over time

A temperature above about 100.4°F usually indicates a fever caused by infection or illness

. In summary, while 98.6°F is the classic average, normal body temperature can range between 97°F and 99°F in adults, with variations depending on individual and measurement factors.