To "be as right as rain", means that a person is perfectly well and fit.
It depends on what you mean by basic rain? Rain is water falling from the clouds - light rain, drizzle, heavy rain, or a downpour!
Right as Rain was created in 2001-02.
Right as Rain has 336 pages.
The ISBN of The Right Attitude to Rain is 0375423001.
The Right Attitude to Rain has 288 pages.
The Right Attitude to Rain was created on 2006-09-19.
It means that it could rain
rain
The right proportion of sun, rain and nutrients; a good summer.
"'Right as rain' migh be expressed as "straight as rain", or "straight as rain falls" or "to move in a straight line." The metaphor plays on a resonance between geometric straightness and correctness of judgment."
Mostly cloudy does not always mean it will rain. While rain is possible on cloudy days, it is not always the case.
Isolated rain means the rain can hit at any time.