Does a rainbow only appear with rain?

<p style=";text-align:left;direction:ltr">Arabia Weather - For a rainbow to form, there must be drops of water in the atmosphere, and then the sun shines on these drops at the appropriate angle, until this harmonious mixture of colors is emitted on the horizon. But is rain the only state in which the atmosphere contains drops of water? Of course not. The air may be somewhat humid, meaning it contains enough droplets of water for this arc to form.</p>