The air near the ground cools to the DEW POINT.
Condensation.
Dew
DEW
dew, due, do
dew
dew
drops of water form on surfaces near the ground Dew/condensate ; see relevant link .
think about itif you can't get it than it is because it gets so cold it forms moisture just not enough for it to rain
Water vapour in the air - condenses onto surrounding surfaces when the temperature drops.
The moisture comes from the water vapor in the air. As the temperature drops to near the dew point, the water vapor condenses on cold surfaces in the desert.
Water droplets condensed from the air, usually at night, onto cool surfaces
When water vapor reaches its dew point it then becomes saturated. Either the vapor falls as rain, or if it is a cool clear night it forms as dew on surfaces. if the surface is cold enough it can also form as frost.