The key weather and climate features in the northern hemisphere in June 2015


Air temperature

June was abnormally warm in most parts of the Russian Federation. Only on Sakhalin Island, in the north of Primorye and the south of Kamchatka, partly in Kaliningrad, Pskov, Arkhangelsk Region and the Republic of Karelia mean monthly air temperature was a little lower than normal. In the rest of the country, it has exceeded the norm. In the Urals, western Siberia and the Lower Volga - by 4-6ºC. New temperature maxima during the month were many times recorded throughout the territory. On certain days in the Republic of Kalmykia, the Astrakhan Region and the eastern areas of the Volgograd and Saratov Regions the thermometer rose to the level of +40ºC and above. Also there was frost during the month, sometimes it comes up to new daily temperature minima. Thus, in the first decade of the month frosts happened in the north of the European territory, in Bashkiria, in the south of the Krasnoyarsk Territory, the Irkutsk region and the Trans-Baikal region, in the second decade - in the central region of Russia, and in the third decade - again on Sakhalin and in Trans-Baikal. Still the warm weather in June significantly prevailed over the cold the mean month temperature received the second rank among the highest values for this indicator yielded only by June 2012; the first half of the year was the warmest in the history of regular meteorological observations in the country.

The key weather and climate features of May 2015 in the Northern Hemisphere

Air temperature In May, as in any other month of spring this year, the main anomaly of heat in Russia has concentrated in the European north and the Urals. The unseasonable warm was mentioned there for the entire month. The maximum temperature was recorded on the Arctic islands, in the Komi Republic, the Nenets and Yamal-Nenets Autonomous District. Mean month air temperature exceeded the norm by 4-7°C. In the Urals Federal District was the warmest May in history and in the Northwest this May was the second warmest.

Heat records were registered in other parts of Russia, for example, in the Irkutsk region in the first and in the center of the country (the Middle Volga and Chukotka) in the third decade of the month. Everywhere except the above areas, the anomalies did not exceed an average of + 1 ... 2°C. In the Far East May was even colder than normal. In the last case, there were records of minimum daily temperature to be mentioned. Frosts up to -5 ... -7°C were observed not only in the east, but also in Central Russia, Crimea and North Caucasus. In the first twenty days of the month the weather in the European territory was colder than usual. Mean decade temperature anomalies reached -2 ... -3°C.

All this has led to the fact that in Russia May 2015 is not among the warmest, but it can not be said about the whole spring. It was the fifth warmest spring in the history of regular meteorological observations, though it inferior to the record warm spring of last year for about 1 °C. So as in the spring of the last year, this time large positive temperature anomalies (up to + 6°C) had formed in the north of the European territory, in the Urals and Siberia. Everywhere in the country, spring again was warmer than normal, but this time anomalies were less than the anomalies of the last year, especially in the European territory.