windchills

Windchills is the plural of windchill, the measure of how cold air feels on exposed skin when wind is factored in.

Meteorologists report windchills alongside actual temperatures during winter weather forecasts because wind strips heat from the body faster than still air does.

With windchills dropping to twenty below, schools across the region closed.

The term can also refer to the chilling effect itself: The windchills made it dangerous to be outside for more than a few minutes.