MAIN WEATHER AND CLIMATE TRAITS IN THE NORTHERN HEMISPHERE AS OF FEBRUARY 2025
Air temperature
The abnormally warm weather which reigned in the ETR in January migrated to the beginning of February. In the first decade, new air temperature maxima were recorded in Central Russia and the Russian North where the decade-averaged temperature anomalies ranged from two to six or more degrees. In the Urals, these anomalies where even higher: up to or greater than +8°. At the same time, the trends in Siberia and the Far East were different: while the weather in the north of Siberia and in the south of the Far East was noticeably warmer than usual (with the decade-averaged anomalies of up to +8-12° and new daily temperature maxima in Evenkiya, Primorye and Sakhalin), the weather in the south of Siberia and in the north of the Far East was mostly colder, and the above anomalies were in the range -4…-7°. In Chukotka, the frosts were as cold as -50…-55°, and new daily temperature minima were recorded.
In the second decade, colds descended upon the ETR, and the average temperature dropped below the normal value everywhere, notably, by 2-3 or more degrees below in the south and west. The warmth in the Urals subsided (resulting in anomalies of +2…4° as compared to +6…8° in the first decade). In the north of the Far East, the abnormal warmth replaced the cold, and the weather became 6-8° warmer than usual. The anomalies reached 2-3 or more degrees in Siberia, new temperature maxima were set for several days in a row in Chukotka, and the record-breaking warmth was observed in Primorye.
In the third decade, the weather in the central and southern regions of the ETR became yet colder with the frosts down to -20…-24° in Donbass and the Rostov Region, and the thermometers in the Stavropol and Krasnodar Territories showed record low readings. The decade-averaged temperature anomalies reached -3…-10°. The abnormally cold weather returned to Chukotka.
MAIN WEATHER AND CLIMATE TRAITS IN THE NORTHERN HEMISPHERE AS OF JANUARY 2025
Air temperature
During the first month of 2025, abnormally warm weather prevailed in most of the Russian Federation, especially in the ETR where new daily maxima of air temperature were repeatedly recorded from Syktyvkar and Vologda in the north to Crimea and Dagestan in the south and from Smolensk in the west to the Volga region and Udmurtia in the east, and the decade-averaged temperature anomalies exceeded +4-8°.
In the first half of the month, a similar situation was observed in the Urals where the temperature anomalies in the first and second decades were even higher than in the ETR, and new temperature maxima were measured in many locations. But after cold weather came to the north of this region in the third decade, the decade-averaged temperature anomalies became negative, and the temperatures to the south of the region changed to normal.
The patterns in Siberia and in the Far East were more involved: there, new temperature maxima in the south of Western Siberia as well as in Trans-Baikal and Primorye were accompanied with new minima when the thermometer readings in the north of the Krasnoyarsk Territory, in Yakutia and in Chukotka dropped below -50° at times. In the second and third decades, the decade-averaged temperature anomalies in the north of Siberia, in Kolyma and in Chukotka were -2…-7°.