Both climate and field conditions in Sandomierz surroundings allow to cultivate a lot of stenothermal plants. The cultivation of tomato growing high on pales is successful here and the area of cultivation makes up about 1000 ha. In connection with the significant diversity of crop yields in several years of cultivation there has been made an effort to estimate climate conditions of this microclimate and their influence on the variability of tomato yielding. There have been analysed some factors such as temperature, rainfall, sunlight, the date of the occurrence of the last ground frost in spring and the first in autumn, in the years 1985-2003 in the vegetative period from April to September. The conditions observed in Sandomierz region have been compared to important regions of vegetable production near Lublin, Kraków and Łódź. The relatively high temperatures, balanced course of particular climate factors during the vegetative period, early disappearing ground frost and long period without ground frost permit the conclusion that that among the analysed regions successful and reliable cultivation of tomato is the most probable in the Sandomierz region.