Wikipedia says that the normal body temperature is 37'C, or comprised between 36'C and 37'C.

Quote Originally Posted by Wikipedia
# 37°C (98.6°F) - Normal body temperature (which varies between about 36-37.5°C (96.8-99.5°F)
# 36°C (96.8°F) - Mild to moderate shivering (this drops this low during sleep). May be a normal body temperature.
# 35°C (95.0°F) - (Hypothermia) is less than 35°C (95.0°F) - Intense shivering, numbness and blueish/greyness of the skin. There is the possibility of heart irritability.
They also say that females have a slightly higher body temperature than males, even for animals. Alcohol reduces a bit body temperature, while food might increase a bit. They say that the heat of the environment has almost no effect on body temperature, and that the temperature of those living in the tropics is practically identical with those dwelling in the Arctic regions.