The Wright family has new neighbors who have a surprising fear of rain, and with good reason, as they discover when they go on an outing with the Sakkaros.
Blech. Asimov wrote up this idea by Bob Mills, who then edited F&SF, but Mills rejected it and you can’t blame him. It might have done OK for a quick five-minute “Twilight Zone,” but it really doesn’t work as a story. Very minor Asimov.