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The article presents the study results of the monthly variability thunderstorm activity at three meteorological stations located in Iraq over a ten-year period from 2000 to 2009. This is a study based on archived data from daily meteorological observations. The study of fronts for six months a year and for ten years showed that thunderstorms most often occur in March and April, accounting for about 47.42% of all thunderstorms. Moreover, 22.3% of them are in the northern mountainous region of Iraq.

The paper demonstrates the modern agro-climatic recourses for the period 1981–2012 years and their comparison with the climatic norms for the last period 1912–1980 gg. Shows trends multiyear variations of agro-climatic indices by natural zones of the Saratov region

On the basis of a long series of observations (1912–2010 gg.) investigated long-term variability in temperature, precipitation and other meteorological parameters. It is shown that climate normal of temperature and precipitation in the modern period is significantly different from the baseline period of 1961–1990 gg., proposed by the WMO

Repeatability and dynamics of probability of various type of droughts, and also estimation of their intensity on hydrothermal factor for the 120-year-old period (1891–2010гг is shown.). The agrometeorological characteristic of the most severe droughts is given. Decrease in productivity of grain crops and total gathering of grain in the Saratov area in years with various types of droughts is resulted

The paper shows the changes in precipitation regimes in their annual cycle on natural areas of the Saratov region during the observation period from 1936 to 2012. The decrease in precipitation in the main vegetation period leads to increase the aridity, especially significant in the forest-steppe areas of the region.

Circulation processes during the formation of anomalous precipitation in June 2013 аnd 2014, which identified a high yield of grain crops in the Saratov region, are analyzed.

To the article the estimation of dynamic of annual precipitation is driven, maximally possible and total evaporation in the different soil-climatic zones of the Saratov area in the conditions of the global warming of climate. It is shown that in a period from 1981 to 2014 year noted a statistically significant increase in the maximum possible evaporation, which leads to an increase of deficit of evaporation. As a result of the observed tendencies the climate norms of gidromelioration in the area were increased on 200–300 м3 / hectare.

In the article the tendencies of change of relative humidity and deficit of humidity of air, numbers of days are shown with relative humidity of air ?of 30% and ?80%, number of dry and moist days, to maximal duration of dry and moist periods during the vegetation of agricultural cultures, and also monthly and annual rainfalls and number of days with the different amount of fallouts. Speed over and meaningfulness of these changes are brought in a period from 1981 to 2014 on the station Saratov South-East.

The article provides an analysis of sinoptical conditions that caused the abnormal weather of autumn and winter 2015–2016 year in the Saratov region. The characteristic agrometeorological conditions in different soil-climatic zones of the region, showing the deviation of the air temperature and precipitation from the climatic norm and the assessment of their impact on growth, development, and overwintering of winter crops.

The characteristics weather conditions and circulation processes during summer 2015 in Saratov are discussed. Their role in the formation of precipitation is estimated.