On the basis of the data collected at 35 meteorological stations of the Hydrometeorology Department of the Ministry for Natural Resources of Belarus, an analysis of perennial rows of atmospheric precipitation year change is being presented. With the application of the homogeneity principles, the zoning of the territory of Belarus has been carried out according to the variation of the precipitation gradient. Proceeding from the data of precipitation year change registered at the meteorological stations, 6 zones have been designated. Histograms, reflecting tendencies in the average perennial intra-year distribution of atmospheric precipitation, have been constructed for the stated zones along the average trend parameters.