The article examines the theme of the perception of nature by the inhabitants of besieged Leningrad on the eve and during the siege. The dependence of people on the state of the atmosphere became enormous during the long siege. The hot and sunny war summer of 1941 fully corresponded to the serene moods of the majority of Leningraders. The indifference of natural splendor began to contrast monstrously with the bombs and shells that fell on the city in the first autumn of siege. In winter, city transport did not work, there were significantly fewer cars, many enterprises did not operate, and there was no central heating in most houses. The city became quieter when there were no air raids and shelling, the air was cleaner, the nature and beauty of the city were more noticeable. The weather influenced the moral and psychological state of the Leningraders, determined the danger of bomb and artillery strikes, the ability to extinguish the many fires, the threat of death from the cold. Never before has nature so much predetermined the position of the townspeople, the very possibility of life and death. The hard impressions of the moon and snow have been preserved in the memory of many blockade survivors for many years. The paper is based on the diaries, letters of Blockade’s period, transcript of oral evidence, which appeared shortly after the blockade and the war, memories, interviews created later.