No, it does not always rain on the vernal equinox. The vernal equinox is an astronomical event that marks the beginning of spring in the Northern Hemisphere and autumn in the Southern Hemisphere. It occurs when the Earth's axis is tilted neither toward nor away from the Sun, resulting in equal lengths of day and night. While some regions may experience precipitation around the time of the vernal equinox due to seasonal weather patterns, such as increased rainfall during the spring season in certain areas, it is not a guarantee that there will be rain during this event. Weather conditions can vary widely across different locations and are influenced by a range of factors including local climate, air pressure, and prevailing wind patterns.