Supporting agencies: The major research (supercomputer modeling, processing of the satellite images, data management and analysis) performed by M.I. Varentsov and M.Yu. Grishchenko was funded by the grant program of Russian Science Foundation (project No. 17-77-20070 “An initial assessment and projection of the bioclimatic comfort in Russian cities in XXI century against the context of climate change”). The work of Hendrik Wouters (discussing and interpreting the results, participation in writing the paper) was funded by the European Research Council (ERC) under Grant Agreement No. 715254 (DRY–2–DRY). The research was carried out using the equipment of the shared research facilities of HPC computing resources at Lomonosov Moscow State University. The authors are grateful to the administration and stuff of the Federal State Budgetary Institution “Central Administration of Hydrological and Environmental Monitoring” and to the administration and stuff of the Вudgetary Environmental Protection Institution “Mosecomonitoring” for providing the data of meteorological observations used in the study.