Wind chill describes the perceived decrease in air temperature felt by the body due to the combined effect of low temperature and wind. Moving air removes the thin layer of warm air that surrounds the skin, increasing heat loss and making it feel colder than the actual ambient temperature.
The relationship between temperature, wind speed, and perceived cold is quantified by the wind chill index. For temperatures at or below 10 °C and wind speeds above 4.8 km/h, the North American formula is used:
The calculated wind chill index helps forecasters and the public assess the risk of frostbite and hypothermia. It is important to note that the formula is an empirical approximation and does not account for factors such as humidity, solar radiation, or individual metabolic differences.
What is wind chill?
When should I use this wind chill calculator?
How does wind affect perceived temperature?
What is the North American formula for wind chill?
Can I use this calculator for any temperature?
What units should I use for the wind speed?
Why is wind chill important?
Results are for informational purposes only and do not constitute professional advice.