How is artificial rain produced
Hundreds and thousands of people die every year because of not having rain causes serious problems like drought. Artificial rain is produced by spraying clouds with substances like Silver Iodide or cheaper ones like solid carbon dioxide (dry ice) or even finely powdered Sodium Chloride. The process is called seeding.
The vapor in the cloud does not condense to liquid water. The super cooling gets disturbed by spraying the cloud with the chemicals using a small airplane for the purpose.