Normal body temperature for healthy babies is in the range of 96.8°F to 98.6°F, or 36°C to 37°C. If the baby's body temperature rises above 100.4°F to 101.3°F, then it is considered as indication of fever. If it falls below 96.8°F then the child has low temperature and needs immediate warming up.
For children, the normal body temperature range is between 96.8°F to 98.2°F. It is the same as the range of normal body temperature for adults. If the rectal temperature of children reaches 100.4°F, then it need call for immediate medical attention for fever. On an average, there is a fluctuation of body temperature of 2°F on daily basis.
The normal body temperature for adults is 98.6°F or 37°C under normal condition of no physical activity or excessive ambient temperature conditions. These temperatures are the core body temperature. It is in the normal range if the orally measured temperature of adults is 98.2°F, with fluctuation of 1.3°F higher or lower. If the adult shows oral temperature of more than 99.5°F, then it is considered as fever or some other medical conditions.
In elderly people, the temperature is lower. Around 1°F than younger adults.
Talking of different gender, adult women have slightly higher normal body temperature than adult men. It is also observed subtle fluctuations among individuals. Since the proper measurement of body temperature gives a simple but accurate tool to diagnose body health conditions, keeping a customized normal body temperature range record is helpful to forsee some potential health risks.