"station_id"	"year"	"Jan"	"Feb"	"Mar"	"Apr"	"May"	"Jun"	"Jul"	"Aug"	"Sep"	"Oct"	"Nov"	"Dec"
177940	1970	   20	  129	    	    	    	    	    	   86	   79	  141	   67	  116
177940	1971	   54	  132	   80	   31	   83	   84	   90	  100	   65	   82	   99	   62
177940	1972	   43	  104	  136	   80	   74	  151	  137	   71	   35	   81	  155	  176
177940	1973	   81	    	   59	   79	  140	  146	  108	   71	   89	   90	   91	  289
177940	1974	   83	   51	  115	  135	  172	  107	  132	  117	  106	   37	  109	    
177940	1975	    	    	    	    	    	    	    	    	  124	  109	  108	   92
177940	1976	   93	  103	   64	   78	    	    	    	    	    	    	    	    
177940	1977	    	    	    	    	    	    	    	    	    	    	    	    
177940	1978	    	    	    	    	    	    	    	    	    	    	    	    
177940	1979	    	    	    	    	    	    	    	    	    	    	    	    
177940	1980	    	    	    	    	    	    	    	    	    	    	    	    
177940	1981	    	    	    	    	    	    	    	    	    	    	    	    
177940	1982	    	    	    	    	    	    	    	    	    	    	    	    
177940	1983	    	    	    	    	    	    	    	    	    	    	    	    
177940	1984	    	    	    	    	    	    	    	    	    	    	    	    
177940	1985	    	    	    	    	    	    	    	    	    	    	    	    
177940	1986	    	    	    	    	    	    	    	    	    	    	    	    
177940	1987	    	    	    	    	    	    	    	    	    	    	    	    
177940	1988	    	    	    	    	    	    	    	    	    	    	    	    
177940	1989	    	    	    	    	    	    	    	    	    	    	    	    
177940	1990	    	    	    	    	    	    	    	    	    	    	    	    
177940	1991	    	    	    	    	    	    	    	    	    	    	    	    
177940	1992	    	    	    	    	    	    	    	    	    	    	    	    
177940	1993