Wind Chill Basics

"The weather outside is frightening ..." as the lyrics to the familiar song say. During this frigid time of year, the term "wind chill" takes on a very real and serious meaning, so bundle up and take extra care with outdoor pets and other animals.

This chart shows you just how serious it can be. There's also a calculator at the bottom of the page to help you work out the wind chill at your place.

According to the National Weather Service, "Windchill is based on the rate of heat loss from exposed skin caused by wind and cold. As the wind increases, it draws heat from the body, driving down skin temperature and eventually the internal body temperature. Therefore, the wind makes it FEEL much colder. If the temperature is 0 degrees Fahrenheit and the wind is blowing at 15 mph, the wind chill is -19 degrees Fahrenheit. At this wind chill temperature, exposed skin can freeze in 30 minutes."

Wind chill affects people and animals but not inanimate objects. The NWS states, "The only effect wind chill has on inanimate objects, such as car radiators and water pipes, is to shorten the amount of time for the object to cool. The inanimate object will not cool below the actual air temperature."

The information continues, "When you must go outside, dress appropriately. Wear several layers of loose-fitting, lightweight, warm clothing. Trapped air between the layers will insulate you. Remove layers to avoid sweating and subsequent chill. Outer garments should be tightly woven, water repellent, and hooded. Wear a hat, because half of your body heat can be lost from your head. Cover your mouth to protect your lungs from extreme cold. Mittens, snug at the wrist, are better than gloves. Try to stay dry and out of the wind."

For more information, visit the NWS site and read the wind chill FAQs.

And be sure to keep yourself safe and warm this winter.