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Common information

Season	Autumn			Winter			Spring			Summer
Month	Sep	Oct	Nov	Dec	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Year
Record high, °C	32	27	20	17	18	21	26	27	37	40	38	37	40
Average high, °C	25	19	11	7	6	9	15	19	23	27	29	28	18
Average temperature, °C	18	12	5	1	0	4	8	12	16	20	22	21	12
Average low, °C	11	6	-0	-4	-5	-2	2	5	9	13	15	15	5
Record low, °C	2	-5	-11	-12	-15	-10	-7	-3	-5	1	7	6	-15
Rain, days	8	9	6	5	5	4	9	10	13	12	10	10	101
Snow, days	0	0	1	4	4	2	1	0	0	0	0	0	12
Fog, days	23	23	21	20	20	20	23	21	24	22	23	25	265
Thunderstorms, days	3	0	0	0	0	0	0	1	5	7	9	8	33
Snowfall, cm.	1	7	30	34	31	33	41	25	6	0	0	0	207
Average precipitation, mm.	67	57	55	27	26	26	45	53	82	81	93	92	702
Relative humidity, %	71	75	74	73	72	69	62	66	69	66	66	68	69
Relative humidity morning, %	92	94	91	90	89	89	85	85	90	87	86	89	89
Relative humidity evening, %	53	59	56	60	56	49	42	43	49	48	48	49	51
Wind speed, km/h	8	6	12	12	12	6	9	9	9	12	9	9	9
Monthly sunshine, часов	128	86	49	34	40	71	106	126	150	144	173	162	1269
Day Length, часов	13	11	10	9	10	11	13	14	16	16	16	15	13
Dew point, °C	12	7	0	-3	-4	-2	0	3	9	12	15	15	64
Growing degree-day, °C	240	65	0	0	0	0	0	61	193	293	372	353	1577
Atmosphere pressure, bar	863	862	860	859	860	859	859	858	860	862	863	863	10327
Solar radiation, global, Mj/m²	14	9	6	4	5	9	13	17	20	21	21	18	13