Hoarfrost is a type of frost that forms when water vapor in the air freezes onto surfaces, creating delicate, white ice crystals. This phenomenon typically occurs on cold, clear nights when temperatures drop below freezing. The crystals can appear on grass, trees, and other objects, giving them a shimmering, frosty appearance. Hoarfrost is often seen in winter and can create beautiful landscapes. It is different from regular frost, which forms when dew freezes. The unique patterns of hoarfrost can be influenced by factors such as humidity and wind, making each occurrence distinct and visually striking.