Air Temperature and Human Comfort  The Wind Chill Index

Wind Chill Temperature (ºF) = 35.74 + 0.6215T – 35.75(V^{0.16}) + 0.4275T(V^{0.16}) where T is the air temperature and V is the wind speed in miles per hour. Wind Chill Temperature (ºC) = 13.12 + 0.6215T – 11.37(V^{0.16}) + 0.3965T(V^{0.16}) where T is the air temperature and V is the wind speed in km per hour. 