"station_id"	"year"	"Jan"	"Feb"	"Mar"	"Apr"	"May"	"Jun"	"Jul"	"Aug"	"Sep"	"Oct"	"Nov"	"Dec"
275783	1970	    	    	    	    	    	    	    	    	    	    	    	    
275783	1971	    	    	    	    	    	    	    	    	    	    	    	    
275783	1972	    	    	    	    	    	    	    	    	    	    	    	    
275783	1973	    	    	    	    	    	    	    	    	    	    	    	    
275783	1974	    	    	    	    	    	    	    	    	    	    	    	    
275783	1975	    	    	    	    	    	    	    	    	    	    	    	    
275783	1976	    	    	    	    	    	    	    	    	    	    	    	    
275783	1977	    	    	    	    	    	    	    	    	    	    	    	    
275783	1978	    	    	    	    	    	    	    	    	    	    	    	    
275783	1979	    	    	    	    	    	    	    	    	    	    	    	    
275783	1980	    	    	    	    	    	    	    	    	    	    	    	    
275783	1981	    	    	    	    	    	    	    	    	    	    	    	    
275783	1982	    	    	    	    	    	    	    	    	    	    	    	    
275783	1983	    	    	    	    	    	    	    	    	    	    	    	    
275783	1984	    	    	    	    	    	    	    	    	    	    	    	    
275783	1985	    	    	    	    	    	    	    	    	    	    	    	    
275783	1986	    	    	    	    	    	    	    	    	    	    	    	    
275783	1987	    	    	    	    	    	    	    	    	    	    	    	    
275783	1988	    	    	    	    	    	    	    	    	    	    	    	    
275783	1989	    	    	    	    	    	    	    	    	    	    	    	    
275783	1990	    	    	    	    	    	    	    	    	    	    	    	    
275783	1991	    	    	    	    	    	    	    	    	    	    	    	    
275783	1992	    	    	    	    	    	    	    	    	    	    	    	    
275783	1993	    	    	    	    	    	    	   67	   63	   82	   85	   93	  138