100.4°F or 38°C
A fever is a rise in body temperature. It's usually a sign of infection. The fever itself is generally harmless and probably helpful. Fevers usually don't need treatment. The average body temperature is 98.6 F (37 C). But normal body temperature can range between 97 (36.1) and 99 (37.2) or more. Knowledge center. A fever, or pyrexia, is a rise in internal body temperature to levels that are considered to be above normal. Average body temperature is about 98.6°F or 37°C, and temperatures above 100.4°F or 38°C are generally considered to be febrile. Body temperature is determined by the body's thermoregulatory set-point. Normal body temperature. Most people think a normal body temperature is an oral temperature (by mouth) of 98.6°F (37°C) . This is an average of normal body temperatures. Your normal temperature may actually be 1°F (0.6°C) or more above or below this. Also, your normal temperature changes by as much as 1°F (0.6°C) during the day, depending on how active you are and the time of day. Body temperature is very sensitive to hormone levels. Most people think of a normal body temperature as an oral temperature of 98.6°F (37°C) . This is an average of normal body temperatures. Your temperature may actually be 1°F (0.6°C) or more above or below Most people think of a normal body temperature as an oral temperature of 98.6°F (37°C) . This is an average of normal body temperatures. Your temperature may actually be 1°F (0.6°C) or more above or below
http://www.mayoclinic.org/first-aid/first-aid-fever/basics/ART-20056685 http://www.medicalnewstoday.com/articles/9895.php http://www.uofmhealth.org/health-library/hw198785 http://www.webmd.com/first-aid/body-temperature http://www.emedicinehealth.com/script/main/art.asp?articlekey=128929
A fever is a rise in body temperature reading above