Cold and clear

Depending on where you live, this has entirely different meanings when reporting on the weather. Here in the southern mid-west, cold and clear is temps between 0-35 with the sun shining. In Alaska, cold when referring to weather starts at below, -1 and is anytime you can see sky, dark or light. Cold in Chicago is below 32 and in Minnesota I don’t think cold applies until 0 either. What is your definition of cold and clear?