"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	    	    	    	    	    	    	    	    	    	    	   64	  495
273658	1993	  356	  737	 1219	  127	    	    	    	    	    	    	    	  165