| | Conditions Treatments | Altitude Sickness What body temperature is considered to be too low for a 17 year old girl? Normal body temperature is between 97.8°F (36.5°C) and 99.1°F (37.3°C). Anything below 95°F (35°C) is considered to be hypothermia. Altitude Sickness - Related Articles Air Pollution Adverse Effects How to Use Gatsby Moving Rubber Individual HMO Health Insurance in Southern California How to Use a Sphygmomanometer Is My Treatment Working? What are three products that the lung remove? What Is Ganglionopathy Sensory Neuropathy?