wind-chill factor

1. The temperature of windless air that would have the same effect on exposed human skin as a particular combination of wind speed and air temperature. As the wind blows faster, heat is lost more quickly from exposed skin, making a person feel colder even though the air temperature remains the same.
2. Also called chill factor

Example Sentences

The race has never been canceled, though it was shortened in 1981, when the wind chill factor dropped to 71 degrees below zero.

From The Daily Beast

He allowed that he does have a limit of 30 below, not counting the wind chill factor.

From The Daily Beast