Why Does Frost Form on the Inside of Car Windows?

[DelSarah]

Frost forms on the inside of car windows due to the temperature difference between the interior and exterior of the vehicle. The higher temperature inside the cabin compared to the outside causes moisture in the air to condense on the inner surface of the windshield, forming frost. When warm, moist air comes into contact with the cooler glass, the moisture cools and condenses into frost. To address frost on the inside of the windows, first turn on the air conditioning and set it to cold for a while until the frost dissipates. Then, switch to warm air and adjust the vents to blow directly onto the windshield. The warm air will help evaporate the frost. Alternatively, you can use a cloth dampened with dish soap or a specialized anti-fog solution to wipe the inside of the windshield, which can effectively prevent fogging and frost formation.