New classification of atmospheric draught (AD) intensity has been proposed based on reaction of various crops on regimen of air temperature and humidity in the condition of physiological pessimum. Iterations of AD of various intensity has been studied for all the climatic zones of Uzbekistan. It has been revealed that it is not high temperature that contributes most in the formation of AD, but low moist content. Certain trend for strengthening of aridity of Uzbekistan’s territory has been established that requires certain measures on minimization of its consequences on the country’s economy.