In 2024, Russia recorded its second warmest year since 1891, second only to 2020. The main consequences of climate change for Russia are melting glaciers and increased frequency of hazardous weather events, which makes the study of winter weather conditions relevant. The 2024/2025 winter season in Moscow was characterised by heterogeneity: snow cover was established in late November and existed until January, reaching a height of 20 cm, but then collapsed. January 2025 was the second January in history with a positive average temperature (+0.1 °C), more than 6 °C above normal, with 16 days of abnormally high temperatures. February 2025 was slightly warmer than normal with less precipitation. The average monthly temperature was −4.8 °C and precipitation was 6 mm. Snow cover was erratic during the month, reaching its maximum height only in the middle of the month. A special system with thermal sensors was used for temperature measurements, and the data were transferred for analysis and graphing in MATLAB, allowing us to observe changes in the thermal state of the air and snow.