In June 2021, very dry weather conditions were observed throughout the Lake Sevan basin, the monthly precipitation was 2-20% of the norm, and there was no precipitation on the territory of Vardenis throughout the month. The average monthly air temperature was 5-6 degrees above normal, which is considered abnormally hot.
In July and August, the average monthly air temperature continued to remain 1-2 degrees above normal, the amount of precipitation increased to some extent, amounting to 70-120% of the norm in July, and 54-117% of the norm in August.
In September and November, the average monthly air temperature was mostly 1-2 degrees above normal, in October it was within the normal range. The amount of precipitation for three months in most of the Sevan basin was below normal, amounting to 50-80% of the norm.
In December, the average monthly air temperature was 1-2 degrees above normal, the amount of precipitation was 15-60% of normal, with the exception of Sevan, where it was 140% of normal.
The average monthly air temperature in January 2022 ranged from -5 ... -7 degrees, which is within the climatic norm. Precipitation on the segment of Chambarak and Shorzha was 25-38% of the norm, on the segment of Martuni, Semenovka and Gavar 70-75% of the norm, and on the remaining sections -within the norm. 
For comparison, we note that in January last year the amount of precipitation was almost twice as much as in January this year (110-180% of the norm), as a result of which the lake level remained unchanged in January 2021, and decreased by 4 cm in 2022. 
In general, if we summarize the data for the last 8 months, during this period in the Sevan basin there were quite dry and weather-climatic conditions with a thermal background above normal.
The level of Lake Sevan as of January 1, 2021 was 1900.52 m, which is 9 cm higher than on the same day last year. During 2021, the maximum level of the lake was 1900.91 m, which was observed on June 4-8. By the end of the year, as of December 31, 2021, the lake level was 1900.43 m, which is 9 cm below the level of January 1, and 48 cm below the annual maximum.
Abnormal weather conditions established in the republic in May-June 2021 had a negative impact on Lake Sevan. In particular, the monthly evaporation of the components of the water balance of Lake Sevan, due to high temperatures in June, exceeded the historical maximum of this month, amounting to 153.7 mil. m3, which is equivalent to a lake water level of about 12 cm thick layer, and on the surface of the lake spilled precipitation amounted to 4.80 mil. m3, which was 4.3 times less than the historical minimum cost of this month, the inflow of river flows into the lake amounted to 44% of the monthly norm. 
In addition, in such weather conditions, water intake from Lake Sevan began earlier than scheduled, usually water intake from the lake is carried out from the 2nd decade of June, and in 2021 it began on May 25 and continued until September 28. 
Due to the abnormal weather conditions observed in June, the lake level has decreased intensively since June 8, 2021, while it should be noted that during June the level of Lake Sevan rises by an average of 8 cm, and in June 2021 the lake level decreased by 10 cm.
In the period from June to December 2021, the inflow of rivers into Lake Sevan amounted to 237.5 mil. m3, which is 72% of the norm, 173.9 mil. m3 fell on the surface of the lake, which is (62% of the norm).
Evaporation from the lake surface in June-December amounted to 953.4 mil. m3, which was 110% of the norm.
 The amount of water released from Lake Sevan in 2021 amounted to 227.651 mil. m3 (25.05.2021-28.09. 2021) and the volume of water transferred to Lake Sevan through the Arpa-Sevan water pipeline (including groundwater inflow) amounted to 157.447 mil. m3 (December 31, 2021).