THE MAIN WEATHER AND CLIMATE FEATURES OF APRIL 2018 IN THE NORTHERN HEMISPHERE

Air Temperature.

April in the north-east of Russia commenced with the abnormally warm weather. In Chukotka and Yakutia in the first decade the new daily air temperature maximums were registered repeatedly. Decade norms were exceeded here by 4-10°. Then the warmth was spread in all east region of the country: from Urals to the Pacific ocean. In the second and third decades the air temperature noticeably exceeded the norms also in the south of Far East and in Siberia. As a result, the last April became here substantially warmer than usual – by 2-8°. In the north of Far East, it was the third warmest April on the record. Let us remind that April of the last year was recognized the warmest one in the region.
Quite another situation took place in the European territory of the country. Here the air temperature above the norm was kept all month only in the extreme west areas and in the north during the first decade. Other days of the month were fresh and sometimes – cold. In Central Russia and Chernozem area during the night the temperature dropped to -4°, in the south (Volgograd area and Krasnodar district) – the frosts were registered. As a result, in the most part of ETR and Urals the average monthly air temperatures became close to the norm. In Volga area and Urals, it was slightly colder than usual. The last April became warmer the norm in the west areas of Central and North-West Federal districts and in Crimea.

THE MAIN WEATHER AND CLIMATE FEATURES OF THE NORTHERN HEMISPHERE IN MARCH 2018

 

Air Temperature.

As it known, the last March (2017) was the warmest month in Russia on the record. In the country the air temperature norms were exceeded. In the centre – by 4-5°, Siberia and north of the Far East - by 7-12°.

The exact antithesis of it became the present March. At this moment, the cold weather for almost entire month dominated in the most part of Russia. From west borders to Yakutia the average monthly air temperature was below the norm. Especially large negative anomalies were formed in the European territory. From Low Volga area to Arctic ocean coast the average monthly air temperature is below the norm by 2-5°, in Komi republic – by 6°. March 2018 became the coldest one in XXI century in Volga area, the second coldest month in Urals and north of ETR and the third in the Central area. During the month repeatedly the new minimal temperature values were registering. First time in happened on the 2nd  and the last time – 30th of March. In Yakutia the frost were reaching -50°, in Chukotka and Kolyma -40…-45°, in Siberia  -35°, in Urals and north of ETR -30° and lower, in Central Russia -25°. In Chernozem area such colds have not been seen more than half century. In the Central Russia March became colder than January, it happens very rare.

Only in the south of European territory and Siberia and Far East the month became warmer than usual. In Stavropol and Krasnodar districts, republics of North Caucasus in the middle of the March the air was heated up to +20°. In the third decade the early warmth came to Altai, south areas of Krasnoyarsk district and Irkutsk region, Transbaikalia. In the first and third decades the abnormal warmth came to the north-east of Russia. Here the average decade air temperatures exceeded the norm by 8-10°.