What is the average normal body temperature in Fahrenheit?

• A. 99.0 F
• B. 97.6 F
• C. 98.6 F
• D. 100.4 F

Answer: (C)

Understanding the usual reference for a healthy adult’s temperature helps you gauge what’s normal. The value most often cited as the average normal body temperature is 98.6°F (37°C). This serves as a standard reference, though real readings vary from person to person and depend on how you measure it. For oral measurements, many healthy adults are near this value, with a normal range roughly from 97.6°F to 99.6°F. So 98.6°F is the best answer as the typical average.

A reading around 99.0°F can be normal for some individuals or at certain times, but it isn’t the standard average. A reading of 97.6°F is within normal limits but represents the lower end of the spectrum. A reading of 100.4°F is generally considered fever, suggesting a potential illness.