An attempt at plotting a map of soil temperature was made basing on the results of measurements carried out during the years 1960-1969 at a depth of 50 cm, at 68 meteorological stations and posts distributed evenly over the area of the country. In view of the requirements of taxonomy, the calculations of temperatures in the soil were carried out for mean yearly temperatures, for the hot (summer) period (June, July, August), and for the cold (winter) period (December, January, February).