The NWS Wind Chill Temperature (WCT) index uses advances in science, technology, and computer modeling to provide an accurate, understandable, and useful formula for calculating the dangers from winter winds and freezing temperatures. The index does the following:
Wind Chill Chart: Color Chart in PDF, Black and White
Wind Chill converted to Knots.
Have more questions? Check our Frequently Asked Wind Chill Questions, Terms and Definitions page and download our free wind chill brochure.
Wind Chill Temperature is defined only for temperatures at or below 50°F and wind speeds above 3 mph.