The color of dewdrops in the United States is typically clear or colorless. This is due to the nature of dew formation, which occurs when water vapor in the air condenses onto surfaces at night. The condensation process does not involve any pigmentation, resulting in the transparent appearance of dewdrops. Data from various scientific studies support this observation, with researchers noting that dewdrops are generally colorless due to the lack of dissolved substances or pigments in the condensed water.

Dewdrops form when the air temperature cools below the dew point, causing water vapor to condense onto surfaces such as grass, leaves, and other objects. The condensation process itself does not introduce any color to the water, as it is simply a physical change from a gas to a liquid state. The transparency of dewdrops is further confirmed by experiments that have measured the refractive index of dew, which is consistent with that of pure water. This lack of coloration is not unique to the United States but is a universal characteristic of dewdrops worldwide.