The authors analyze the dependence of meteorological data on the city of Sochi for the period from 1966 to 2015. Tendencies of changes of four factors of environment in time are designated; hypotheses about normality of distribution of data of statistics of each of these factors are investigated. In addition, possible pair dependences of these factors are studied, linear regression graphs of the identified pairs of dependent factors are plotted, and the dispersion of the data of relatively constructed theoretical lines is considered. Based on the results of the research, conclusions are drawn on the need for further implementation of broader environmental measures in the region and recommendations for the residents of Sochi to preserve their health at different times of the year.