What is the connection between a cold front and humidity?

A cold front occurs when a mass of cold air pushes into a region occupied by warmer air, leading to a drop in temperature. As the cold air moves in, it can cause the warm air to rise, leading to the condensation of moisture and the formation of clouds and precipitation. This process often results in a decrease in humidity in the cold air mass behind the front, while the warm air ahead of the front tends to have higher humidity levels. Thus, the passage of a cold front typically alters humidity levels in the affected area.