Phases of the moon and earthly rainfall

I am not aware of such data. During which phase of the moon does rainfall increase by 1%. Has sufficient data been analyzed to produce high confidence for this conclusion? Neil

I have tended to think that a minor increase in rainfall during the new moon was an effect of an increase of atmospheric density thus making the condensation of water vapor a bit more likley. However since I have lived all my life in the mountains the local effects, ie thunderstorms and the cooling of the prevalent winds have a lot more to do with it than moon phases.

This does have an effect on the tides which are more readily observed. Your Almanac has a table which shows the "spring" and "neap" tides which are either higher or lower than average consistently.