Oh, I want to add, I did not grow up with that version.
My Uncle gave me a 45 of "Rhythm Of the Rain" by Gary Lewis and the Playboys. I was a kid at the time. He gave me and my parents lots of records.
That was the only version I was aware of, and was my favorite.
However, when I heard the Cascades version on the car radio (I heard the song on CD before) I became a fan of the Cascades version.