It is observed that the cube roots of precipitation amounts often are distributed normally. This is found to apply to data for stations ranging from arctic to tropic regions, from extremely wet to extremely dry regions, and for precipitation periods of one day to one year. For comparison, sets of data that have been analyzed by other methods are examined. Certain exceptions to and limitations on the generality of the normal distribution of the cube roots of precipitation amounts are pointed out. Ways of using this characteristic are discussed.