"station_id"	"year"	"Jan"	"Feb"	"Mar"	"Apr"	"May"	"Jun"	"Jul"	"Aug"	"Sep"	"Oct"	"Nov"	"Dec"
273658	1970	    	    	    	    	    	    	    	    	    	    	    	    
273658	1971	    	    	    	    	    	    	    	    	    	    	    	    
273658	1972	    	    	    	    	    	    	    	    	    	    	    	    
273658	1973	    	    	    	    	    	    	    	    	    	    	    	    
273658	1974	    	    	    	    	    	    	    	    	    	    	    	    
273658	1975	    	    	    	    	    	    	    	    	    	    	    	    
273658	1976	    	    	    	    	    	    	    	    	    	    	    	    
273658	1977	    	    	    	    	    	    	    	    	    	    	    	    
273658	1978	    	    	    	    	    	    	    	    	    	    	    	    
273658	1979	    	    	    	    	    	    	    	    	    	    	    	    
273658	1980	    	    	    	    	    	    	    	    	    	    	    	    
273658	1981	    	    	    	    	    	    	    	    	    	    	    	    
273658	1982	    	    	    	    	    	    	    	    	    	    	    	    
273658	1983	    	    	    	    	    	    	    	    	    	    	    	    
273658	1984	    	    	    	    	    	    	    	    	    	    	    	    
273658	1985	    	    	    	    	    	    	    	    	    	    	    	    
273658	1986	    	    	    	    	    	    	    	    	    	    	    	    
273658	1987	    	    	    	    	    	    	    	    	    	    	    	    
273658	1988	    	    	    	    	    	    	    	    	    	    	    	    
273658	1989	    	    	    	    	    	    	    	    	    	    	    	    
273658	1990	    	    	    	    	    	    	    	    	    	    	    	    
273658	1991	    	    	    	    	    	    	    	    	    	    	    	    
273658	1992	    	    	    	    	   43	  204	  101	  114	   62	   67	  132	   95
273658	1993	   68	   94	  170	  122	   21	   53	   37	  133	  107	   93	  133	  134