Five years of northern hemispheric data of specific humidity and winds have been analyzed on an annual basis to study the year to year changes in the field of the atmospheric water vapor. The major findings are; (1) the yearly mean total hemispheric precipitable water content of the atmosphere does not vary more than 4%; (2) the zonally averaged E-W flux is comparatively stable, while the zonally averaged N-S flux has interannual variations up to a factor of 2 in the magnitude of its maximum southward flow, and up to about 18% in the maximum northward transport; (3) withh few exceptions, the locations of the large positive and negative centers in the maps of annual mean E-W and N-S flux components do not shift more than three degrees, but the magnitude of the center value does change substantially within the five-year period; and (4) the deviations of the water vapor content and its flux are affected by Tibetan Plateau, Rocky Mountains, monsoon activity and the year-to-year shift of the North Pacific high.