Eric Clapton - Let It Rain
And a couple from Slim Harpo:
"A rainy day in Georgia: Brook Benton
“walking in the rain” Barry White
This that was “Rainy Night in Georgia”. (Which brings to mind “I Love a Rainy Night” by Eddie Rabbit.
There’s a bazillion versions of “Pennies From Heaven”, so might as well have Frank Sinatra.
Current 93: When the May Rain Comes