Evaluations of several cloud‐seeding projects are discussed. These projects included portions of northeastern New Mexico, southeastern Colorado, and eastern Oregon, and were conducted during July to December 1950. These evaluations are statistical in nature and involve comparisons with the precipitation occurring in nearby unseeded areas. A multiple regression equation was developed from past data relating precipitation in seeded and unseeded areas. In six of the seven months of operation, actual rainfall in the seeded area exceeded the estimate provided by the regression equation. A suggestion of a possible smoothing effect in precipitation patterns due to seeding is also presente