MAIN WEATHER AND CLIMATE TRAITS IN THE NORTHERN HEMISPHERE AS OF SEPTEMBER 2024
Air Temperature
No such warm September as the one this year has been ever seen in the ETR before. New daily maxima of air temperature were recorded from the first to the last day of the month, especially in the North-West, Central and Volga federal districts. The air temperature anomalies were +2…6 or more degrees in the first decade, +2…8° or more in the second one, and +2…5° in the third. But at the beginning of the last decade, abnormally cold air broke through, resulting in frosts from -2 to -6° and setting new daily temperature minima in certain locations.
The monthly-averaged air temperature in the Urals and further eastwards was either close to or less than normal. In the third decade, negative temperatures became common, and new minima were set in Trans-Baikal. But at the same time, the weather in Yakutia was noticeably warmer than usual.
As a result, the monthly averages from the western border of Russia to the Urals or even to the Far East in the north were much higher than normal in September, by 2-5 or more degrees in the ETR.
MAIN WEATHER AND CLIMATE TRAITS IN THE NORTHERN HEMISPHERE AS OF AUGUST 2024
Air Temperature
Coolness that came to the ETR at the end of July remained there for the entire first half of August, and even led to new record-breaking colds and to the first frosts in the north. In the first decade, the average temperature anomalies in the Volga region were -2° or below. Everything changed with the advent of heat in the third decade, when such anomalies reached +3…5 or more degrees in Central Russia, and new temperature maxima were recorded in the Black Earth region, Krasnodar Territory and Crimea and, in the last days of the month, in north-west as well, namely, in the Leningrad and Pskov Regions and in the Republic of Karelia.
In the Urals, the air temperature in the first half of August was close to normal, with the exception of Yamal where the weather in the second decade was slightly warmer than usual. And, just like in the ETR, the heat came to the Urals in the third decade, and the monthly-averaged temperatures in some places exceeded their normal values by two or more degrees.
A similar picture was observed in Siberia where the temperatures were close to normal in the first half of August, and increased to 2-3° above normal thereafter.