As a child, I would check the weather during the winter months to see if the wind chill would result in a day off school. In 2001, the National Weather Service changed the formula for calculating the wind chill.
Wind Chill calculates both the old formula and new formula wind chill temperatures. All you have to do is enter the current air temperature and the wind speed and when you hit calculate, you get the old and new formula wind chills. No graphics to take up memory, just simple data entry and a quick calculation.
Also available is Temperature Calc which combines 3 apps into 1: Dew Point, Heat Index & Wind Chill Calculator.