Rainy is a distinctive girls' name in United States, ranking #9789 in 2017 with 11 recorded births. The name reached its all-time peak in 2014 with 31 births ranking #4630. Since 1996, the popularity has decreased by 38.9%. In 2017, approximately 1 in every 156,898 girls born was named Rainy. FALLING Recent data shows the name is currently falling.