The Main Weather and Climate Features of the Northern Hemisphere in November 2017

Air Temperature.

In the first decade of November almost in all territory of the Russian Federation it was abnormally warm weather. In Urals and Siberia, the average decade air temperatures exceeded the norms by 5-9°, in the north of the Far East – by 6-10°. In the south of Siberia (south areas of Krasnoyarsk district, Kemerovo and Novosibirsk area, Altai district, republic of Altai) and in Chukotka the new maximum air temperature records were registered. Only in Yakutia and in the coast of Okhotsk sea it was colder than usual. Here frosts reached -40°.
In the second decade the warmth, being kept in the European territory (ETR) and Urals, also in the Arctic coast from Taimyr to Chukotka, succeeded the place to abnormal cold in Siberia and in most part of the Far East. In the ETR the average decade air temperature anomalies have set +3-4°, in the Urals - +4-6°, in the Arctic seas coast - +4-11°, in Siberia it was colder than usual by 2-5°, in the south of the Far East – by 2-3°. In the central areas of Siberia the frosts reached -45°, in the Far East the new record minimums were registered.
In the third decade, the cold penetrated to ETR, especially to the south regions, where it became colder than usual by 2-3°. Particularly, the colds became heavier in Siberia, in the west of Yakutia and the Far East. In Evenki it was close to -50°, in Yakutia even lower. The average decade temperature anomalies have set -5…-7°.

The main weather and climate features of the northern hemisphere in October 2017

Air Temperature.

The first decade of October in the most part of Russia became an abnormally cold. At the beginning of the month the colds to -5°came to the south areas of Central Federal District (Lipetsk, Tambov, Orel, Belgorod and Voronezh regions). The same situation took place in the Low Volga area and in Stavropol district. Heavier colds were observed in the South Urals, in Yakutia frosts reached -20°. In some places of Ural, Siberia and Far East Federal districts it was colder than usual by 2° and more over the decade at the average.

Everything was changed in the second decade. Now from the west border to Urals, and in the Arctic territory up to Chukotka the warmth dominated. The average decade air temperature anomalies in some places exceeded +4…+6°. In the north of Yakutia, Kolyma, Chukotka and Arctic islands the new record air temperature maximums were registered. Only south areas of the Far East, as before, remained in the cold.

In the third decade once again the cold weather returned to the European Territory of Russia (ETR). In the north-west the decade became colder the norm by 2-3°. At the same time, it was, as before, warm behind Urals, including the south of the Far East. Although the frosts in Evenki and Yakutia were strengthened up to -30°, the average decade air temperatures exceeded the norms by 4-7°. In the south of Siberia and Khabarovsk district the air temperature daily maximums were registered.