Blustery winds throughout this week have led to wind chill values far below the actual temperatures.
But what exactly is "wind chill," and how is it calculated?
According to the National Weather Service, the wind chill calculates how cold humans and animals will feel when they're outside. Calculations are based on the heat lost from exposed skin due to wind and cold. Higher winds draw more heat from the body.
Want to figure out the wind chill yourself? Use this handy wind chill calculator from the National Weather Service. All you'll need is the temperature in degrees Fahrenheit and the wind speed in miles per hour.
Or, if you'd prefer to do it by hand, check out this formula.