prayers for rain and dew in the second and ninth blessing of the Amida
Around the rainy season prayers for rain and about God's power through controlling the weather are inserted at various points in the liturgy. In some traditions prayers for dew are included as well or in the summer.
In the second blessing, the phrases משיב הרוח, מוריד הגשם, מוריד הטל may be included at different times. In the ninth blessing as well are request for good rains.
Included in this tag is discussion of the precise timing of when the various inserts are included, and the rituals surrounding the moment of the switches.