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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	28	25	25	13	15	15	21	24	30	31	33	34	34
Average high, °C	18	14	9	6	5	5	8	11	15	17	20	20	12
Average temperature, °C	15	12	7	5	3	3	6	8	12	15	17	17	10
Average low, °C	12	9	5	3	1	0	3	5	9	12	14	15	7
Record low, °C	1	1	-5	-11	-13	-11	-6	-1	0	5	8	6	-13
Rain, days	17	19	20	20	18	12	21	16	15	16	16	16	206
Snow, days	0	0	1	3	4	4	2	1	0	0	0	0	15
Fog, days	12	13	13	17	17	15	17	15	13	11	12	13	168
Thunderstorms, days	3	2	1	0	0	0	0	1	2	2	3	2	16
Average precipitation, mm.	75	84	83	77	70	44	66	43	53	68	71	68	802
Relative humidity, %	85	85	90	90	90	85	85	80	80	80	80	80	84
Relative humidity morning, %	91	92	92	92	93	92	93	90	89	90	89	90	91
Relative humidity evening, %	78	80	87	89	89	80	80	73	73	79	77	74	80
Wind speed, km/h	32	22	27	30	30	22	32	27	27	25	28	27	27
Day Length, часов	13	11	9	9	9	11	13	15	16	18	17	15	13
Dew point, °C	12	10	6	4	2	1	4	5	8	12	14	15	93
Growing degree-day, °C	167	60	0	0	0	0	0	0	78	150	224	241	920
Solar radiation, global, Mj/m²	11	6	3	2	3	5	9	15	20	20	20	17	11