What does a low dew point indicate about the moisture content of air?

Question

What does a low dew point indicate about the moisture content of air?

Answer 1

The dewpoint is the temperature to which the air must be cooled to become saturated. A lower dewpoint, as in winter, indicates there is less moisture in the air, so the air must be cooled farther before it will become saturated with water. Dewpoint is a combination of many factors, including temperature, humidity, and pressure.