MAIN WEATHER AND CLIMATE TRAITS IN THE NORTHEN HEMISPHERE AS OF NOVEMBER 2020
Air Temperature
Air Temperature
Warm autumn weather survived in the first decade of November over the whole territory of Russia. The decade-averaged air temperature was 3-6° above the normal value in the ETR, and 3-10° above in the Asian territory of Russia. In the first decade, this temperature was close to normal in the south of the Far East only, or even somewhat lower than that in the Trans-Baikal. New records of heat were set in the north-west and north of Russia, in the Urals, the Krasnoyarsk Territory, Evenkiya, the Tomsk, Novosibirsk and Kemerovo Regions, and the Altai Territory.
In the second and third decades, positive temperature anomalies in the north of the ETR, in Siberia and the Far East grew higher: up to 4-6° in Karelia as well as in the Murmansk and Arkhangelsk Regions, and up to 10-15° beyond the Urals. The thermometer readings rose to +15° in Western Siberia. The air warmed up as never before in Yakutia, in the Trans-Baikal and Evenkiya, in the Turukhansk Territory, in Chukotka and Kamchatka, in the north of the ETR and in the Arctic. In the Angara Region where twenty-degree frosts are usually observed at this time of year, the air temperatures retained in the range of about -2…-10° for the whole week. Yet, the onset of winter manifested itself at last. In the second decade, cold weather came to most of the ETR. Frosts down to -9° were recorded in the Kuban, and came to the Crimea and the Stavropol Territory in the night-time. In the Perm Territory, Bashkiria and the Orenburg Region, the thermometer readings would sometimes drop below the -20° mark, while in Yakutia and the Magadan Regions, frosts reached as low as -40°. In the second and third decades, the decade-averaged temperatures in the centre and south of the ETR were 1-3° lower than normal.
MAIN WEATHER AND CLIMATE TRAITS IN THE NORTHEN HEMISPHERE AS OF OCTOBER 2020
Air Temperature
Air Temperature
The abnormally warm weather which reigned in the ETR during the first month of autumn smoothly migrated to October. The anomalies of decade-averaged temperature at the beginning of the month grew even higher: up to +5-7°. New daily temperature maxima were recorded both in the north (Nizhny Novgorod and Vyborg) and in the south (the Crimea and the Black Sea coast of Caucasus). In the second decade, the weather remained relatively warm in the central regions, and became still warmer in the south and south-east. The thermometer readings in the Crimea and the Black Sea coast approached the 30-degree mark and crossed it in some places. But at the end of the decade, autumn disclosed itself at last and brought first night frosts to the Moscow, Black Earth, Volgograd and Rostov Regions. Yet, the weather in the ETR, remarkably in its south, was abnormally warm until the end of the month. As a result, October 2020 in Central Russia became the warmest for the entire 130-year history of meteorological observations. The previous long-lived achievement of 1896 was exceeded by more than half a degree right away. In the South Federal District, this October was the third warmest; as for the ETR as a whole, the monthly-averaged temperature reached an absolute maximum exceeding the previous one set in 1923 and later repeated in 2008.
In the Urals and to the east of them, the month was also very warm. The average air temperature in the second decade was 5-7° higher than normal in certain areas, most noticeably in the north-east where new highs were recorded for several days in succession. And eventually, this October in the northern regions of the Far East turned out to be the warmest one in the meteorological chronicle. As for the south of Siberia, cool weather with sub-normal temperatures persisted in the first decade and furnished the temperature anomalies of -3…-4°.