Trends in Summer Season Climate for Eastern Europe and Southern Russia in the Early 21st Century

Table 2

Statistical characteristics of the circulation types and the corresponding meteorological characteristics.

Meteorological characteristic	Circulation type	Total number of circulation days	Average temperature (°C) or daily rainfall (mm)	Average anomaly of temp. and precip. with circulation type	Standard deviation of temp. and precip. with type	Statistical confidence
1	2	3	4	5	6	7
Winter
The average daily air temperature, °С	4c	18	−12.5	−5.1	3.7	0.99
	12bw	40	−9.2	−1.7	2.6	0.84
	12d	47	−10.0	−2.6	2.6	0.98
	13w	196	−5.2	2.2	2.4	0.98
Average daily precipitation, mm	1b	10	1.3	−0.1	1.4	0.82
	5b	24	0.9	−0.5	1.5	0.81
	7aw	23	1.0	−0.3	1.2	0.93
	11d	45	1.7	0.4	1.9	0.96
	12bw	40	1.8	0.5	1.8	0.96
	12cw	25	0.8	−0.5	1.7	0.87
Summer
The average daily air temperature, °С	2b	55	17.8	−0.6	1.7	0.90
	4b	56	17.6	−0.8	1.8	0.81
	4c	42	19.7	1.4	1.6	0.96
	8bs	17	16.0	−2.4	1.3	0.82
	9b	18	17.2	−1.2	1.6	0.98
Average daily precipitation, mm	2b	55	1.9	−0.5	2.4	0.91
	4b	56	1.9	−0.5	2.1	0.90
	4c	42	3.8	1.3	2.6	0.87
	8bs	17	5.1	2.6	3.3	0.82
	10а	16	2.0	−0.4	2.4	0.83
	13s	262	1.9	−0.5	2.2	0.82