Annual Observations of Climatic Impacts in the Songhua River Basin, China

Table 1

Monthly averages of the main climatic parameters.

Month	River temperature			Atmosphere temperature			Relative; humidity; (%)	Wind; velocity; (m/s)	Solar; radiation; (W/m^2)	Runoff (m^3/s)
	(°C)			(°C)
	Max.	Ave.	Min.	Max.	Ave.	Min.
April	9.92	9.39	9.01	19.27	12.82	5.57	38.55	3.09	254.67	1302.60
May	12.53	11.97	11.56	14.75	11.09	6.93	65.78	3.59	143.33	702.93
June	23.99	23.51	23.23	26.86	22.34	17.66	64.68	2.60	275.81	2389.98
July	25.09	24.75	24.5	26.94	23.11	18.75	72.55	2.56	217.24	3992.76
August	25.21	24.84	24.59	26.65	21.92	17.91	74.04	1.87	218.71	2962.94
September	20.11	19.75	19.45	21.27	15.41	10.03	67.08	2.21	183.08	2832.21
October	10.75	10.42	10.20	13.67	7.63	1.14	51.42	2.82	136.62	793.05
Average	18.23	17.80	17.51	21.34	16.33	11.14	62.01	2.68	204.21	2139.50