Answer: Dew point temperature is the temperature that a parcel of air would have to be cooled to reach saturation.
Step-by-step explanation:
Dew point is the temperature in which a parcel of air would be cooled in order to become saturated with water vapour. When the air cool further, the water vapour condense to form dew or liquid water. When air cools to it dew point when its have contact with a colder surface, water will condense on its surface.