Solid condensation on a surface that is below 0 degrees C known as?

The solid condensation on a surface that is below 0 degrees C is known as frost. Frost forms when water vapor in the air comes into contact with a surface that is below freezing temperature and freezes. This process is similar to the way that dew forms on a surface at night when the temperature drops below the dew point, but in the case of frost, the surface is below the freezing point of water. Frost is often seen on window panes, car windows, and other surfaces that are exposed to the cold night air.