Rainy is a distinctive girls' name in United States, ranking #6064 in 2025 with 20 recorded births. The name reached its all-time peak in 2014 with 31 births ranking #4630. Since 1996, the popularity has increased by 11.1%. In 2025, approximately 1 in every 80,363 girls born was named Rainy. FALLING Recent data shows the name is currently falling.