# The Wind Chill Factor

How cold is it outside? The combined effect of the wind and the temperature determines the rate at which your body loses heat. This combined effect is called the "wind chill factor". The chart on this page shows that the wind chill factor increases with the wind speed up to 40 mph. When the temperature is less than 30° Farenheit and the wind velocity is at least 15 mph, there is a greater danger of exposed flesh freezing. This shows that the air temperature depends on the wind velocity to create a freezing condition.

### DETAILS

In the US, the formula commonly used for the wind chill factor is given by
where is the air temperature measured in °F, and is the wind speed in mph.
Reference
[1] Wikipedia. "Wind Chill." (Mar 18, 2014) en.wikipedia.org/wiki/Wind_chill.

### PERMANENT CITATION

 Share: Embed Interactive Demonstration New! Just copy and paste this snippet of JavaScript code into your website or blog to put the live Demonstration on your site. More details » Download Demonstration as CDF » Download Author Code »(preview ») Files require Wolfram CDF Player or Mathematica.

#### Related Topics

 RELATED RESOURCES
 The #1 tool for creating Demonstrations and anything technical. Explore anything with the first computational knowledge engine. The web's most extensive mathematics resource. An app for every course—right in the palm of your hand. Read our views on math,science, and technology. The format that makes Demonstrations (and any information) easy to share and interact with. Programs & resources for educators, schools & students. Join the initiative for modernizing math education. Walk through homework problems one step at a time, with hints to help along the way. Unlimited random practice problems and answers with built-in step-by-step solutions. Practice online or make a printable study sheet. Knowledge-based programming for everyone.