"station_id"	"year"	"Jan"	"Feb"	"Mar"	"Apr"	"May"	"Jun"	"Jul"	"Aug"	"Sep"	"Oct"	"Nov"	"Dec"
170398	1970	    	    	    	    	    	    	    	    	    	    	    	    
170398	1971	    	    	    	    	    	    	    	    	    	    	    	    
170398	1972	    	    	    	    	    	    	    	    	    	    	    	    
170398	1973	    	    	    	    	    	    	    	    	    	    	    	    
170398	1974	    	    	    	    	    	    	    	    	    	    	    	    
170398	1975	    	    	    	    	    	    	    	    	    	    	    	    
170398	1976	    	    	    	    	    	    	    	    	    	    	    	    
170398	1977	    	    	    	    	    	    	    	    	    	    	    	    
170398	1978	    	    	    	    	    	    	    	    	    	    	    	    
170398	1979	    	    	    	    	    	    	    	    	    	    	    	    
170398	1980	    	    	    	    	    	    	    	    	    	    	    	    
170398	1981	    	    	    	    	    	    	    	    	    	    	    	    
170398	1982	    	    	    	    	    	    	    	    	    	    	    	    
170398	1983	    	    	    	    	    	    	    	    	    	    	    	    
170398	1984	    	    	    	    	    	    	    	    	    	    	    	    
170398	1985	    	    	    	    	    	    	    	    	    	    	    	    
170398	1986	    	    	    	    	    	    	    	    	    	    	    	    
170398	1987	    	    	    	    	    	    	    	    	    	    	    	    
170398	1988	    	    	    	    	    	    	    	    	    	    	    	    
170398	1989	    	    	    	    	    	    	    	    	    	    	    	    
170398	1990	    	    	    	    	  142	  152	  122	  117	   85	  213	  119	  155
170398	1991	   78	   26	  119	  118	  104	   75	   37	  210	  119	   95	  106	   75
170398	1992	  129	   83	  130	   27	   36	   96	   84	  102	   64	  100	   75	   33
170398	1993	   47	   96	   91	  176	   52	  115	   46	   70	   94	   93	  112	  128