According to supervision of 25 meteorological stations over the period 1961-2005 is researched character of temperature change in the territory of Azerbaijan. It is shown, that the present stage of warming has begun from the middle of the 70th years. However from the middle of the 90th years rates of warming considerably increased. It is established, that for the period of 1991-2005 the mid-annual temperature of air, on average on the Republic, has increased on 0,5 degree, varying for various regions within the limits of 03-0,8 degrees. The greatest warming was noted in January, August and October. Warming was noted in all seasons of a year, however, the greatest anomalies were observed in summer and in winter. It is shown, that in the territory of Azerbaijan on the background of general increase in rate warming of climate, simultaneously redistribution of temperature mode on months and seasons occurs.