wind chill

This is the combined effect of air temperates and wind that produces a 'biting wind'. We are all familiar with the cooling effect of a summer breeze. The flow of air over the skin carries away perspiration and makes the skin cooler. The same combined effect of temperature and wind in cold conditions is called windchill and it can cause people to loose heat from their skins faster than their bodies can replace it. It severe cases the effects of windchill can be life-threatening. This most often happens to mountain climbers and others in exposed places during winter.