It occurs when the internal, or core, temperature of our body is lowered to 95 degrees Farenheit. As wind increases, heat is carried away from the body, lowering the skin temperature and eventually the internal, or core temperature. Human flesh will freeze within one minute at a wind chill temperature below 20 degrees Farenheit. WET Wetness conducts heat away from the body 25 times faster than dryness .
Clothing can become wet from the inside as well as from the outside.
Rain and melted snow are external sources of wetness. But if a person perspires and that perspiration is trapped inside their clothing they can become wet. Any temperature less than our normal core temperature of 98.6 can contribute to to hypothermia. The colder the temperature, the greater the chance of hypothermia setting in. While cotton is great for warm weather, it can be quite dangerous in cold temperatures.