The results of the complex physical-statistical analysis of vertical structure of temperature, humidity, and wind fields in the atmospheric boundary layer of Western Siberia, made by data of long-term observations at eight aerological stations, are considered. Some methodical aspects of initial data preparation and the peculiarities of the vertical distribution of background (mean climatic) characteristics and variances of temperature, humidity, and wind up to a height of 1600 m depending on the season and geographic position of the station are described.