"station_id"	"year"	"Jan"	"Feb"	"Mar"	"Apr"	"May"	"Jun"	"Jul"	"Aug"	"Sep"	"Oct"	"Nov"	"Dec"
270100	1970	    	    	    	    	    	    	    	    	    	    	    	    
270100	1971	    	    	    	    	    	    	    	    	    	    	    	    
270100	1972	    	    	    	    	    	    	    	    	    	    	    	    
270100	1973	    	    	    	    	    	    	    	    	    	    	    	    
270100	1974	    	    	    	    	    	    	    	    	    	    	    	    
270100	1975	    	    	    	    	    	    	    	    	    	    	    	    
270100	1976	    	    	    	    	    	    	    	    	    	    	    	    
270100	1977	    	    	    	    	    	    	    	    	    	    	   25	  698
270100	1978	  508	  533	  305	   51	    	    	    	    	    	    	  267	  584
270100	1979	 1041	  152	    	  152	    	    	    	    	    	   64	   25	   76
270100	1980	   76	  254	  254	    	    	    	    	    	    	    	  254	  335
270100	1981	  229	  610	  127	    	    	    	    	    	    	    	    	  940
270100	1982	  592	  203	  152	  381	    	    	    	    	    	    	   25	  102
270100	1983	  381	    	    	    	    	    	    	    	    	    	    	  381
270100	1984	  508	  127	  584	    	    	    	    	    	    	    	    	  457
270100	1985	  254	  305	  254	  102	    	    	    	    	    	    	  152	  279
270100	1986	  406	  305	   51	    	    	    	    	    	    	    	  229	  330
270100	1987	    	    	    	    	    	    	    	    	    	    	    	    
270100	1988	    	    	    	    	    	    	    	    	    	    	    	    
270100	1989	    	    	    	    	    	    	    	    	    	    	    	    
270100	1990	    	    	    	    	    	    	    	    	    	    	    	    
270100	1991	    	    	    	    	    	    	    	    	    	    	    	    
270100	1992	    	    	    	    	    	    	    	    	    	    	    	    
270100	1993