BELHYDROMET

January is the coldest winter month.
Depending on the nature of the development of atmospheric processes, the January temperature in some years differs significantly from the norm. During the post-war period, January 1950, 1963 and 1969 turned out to be colder than usual (8-10°C below the climatic norm) compared to the norm of 1991-2020 (-4.1 °C), and January 1987 turned out to be exceptionally cold with an average monthly temperature of -16.3 °C (12.2 °C below the climatic norm). 
Warmer than usual conditions, with temperatures 4-5.2°C above the norm, were observed in January 1989, 2007, and 2020. The warmest January on record was in 2025, when the average air temperature across the republic was +1.2°C, exceeding the climatic norm by 5.3°C.
The absolute minimum air temperature was recorded at the Tolochin weather station on the night of 17 January 1940 (-42.2°C).
The absolute maximum air temperature was recorded in Vysokoye on 1 January 2023 (+16.4°C).
The frequency of thaw days in January ranges from 10 to 18.
During January, snow cover typically increases. By the end of the month, its average depth is usually 4-17 cm.
The average number of days with precipitation of 1 mm or more in January is 8-13. 29 to 57 mm of precipitation usually falls per month (the national average is 41 mm). With cyclonic weather, precipitation can exceed the norm by 2-3 times and reach 69-135 mm. The minimum amount of January precipitation in the anticyclonal weather regime does not exceed 1-9 mm.
During the month, on average, there are from 1 to 9 days with fog, from 1 to 7 days with glaze, and from 1 to 8 days with frost. On average, there are 1-3 days with a snowstorm, increasing in some years to 4-10 days.
The greatest gust of wind in January was recorded in Vasilevichi on January 11, 1975 (34 m/s).

The following maximums have been recorded nationally in January:

• 29 days with glaze in Novogrudok in 1960;
• 25 days with hoar frost in Gorki in 1968;
• 23 days with fog in Volozhin in 1971;
• 247 hours (over 10 days) of continuous fog in Mogilev in 1936 and 244 hours in Novogrudok in 1960;
• 2 days with thunderstorms (in Mogilev in 1983 and in Gantsevichi in 1990);
• 15 days with blizzards in Mogilev in 1962;
• 150 hours (over 6 days) of continuous blizzard conditions in Mogilev in 1962.

When using the information a reference to Belhydromet is obligatory