"station_id"	"year"	"Jan"	"Feb"	"Mar"	"Apr"	"May"	"Jun"	"Jul"	"Aug"	"Sep"	"Oct"	"Nov"	"Dec"
273415	1970	    	    	    	    	    	    	    	    	    	    	    	    
273415	1971	    	    	    	    	    	    	    	    	    	    	    	    
273415	1972	    	    	    	    	    	    	    	    	    	    	    	    
273415	1973	    	    	    	    	    	    	    	    	    	    	    	    
273415	1974	    	    	    	    	    	    	    	    	    	    	    	    
273415	1975	    	    	    	    	    	    	    	    	    	    	    	    
273415	1976	    	    	    	    	    	    	    	    	    	    	    	    
273415	1977	    	    	    	    	    	    	    	    	    	    	    	    
273415	1978	    	    	    	    	    	    	    	    	    	    	    	    
273415	1979	    	    	    	    	    	    	    	    	    	    	    	    
273415	1980	    	    	    	    	    	 15.7	    	    	    	  5.6	 -1.0	    
273415	1981	 -9.7	    	 -1.3	    	    	    	    	    	    	    	  1.2	    
273415	1982	    	    	    	    	    	    	    	    	    	    	    	    
273415	1983	    	    	    	    	    	    	    	    	    	    	    	    
273415	1984	    	    	    	    	    	    	    	    	    	    	    	    
273415	1985	    	    	    	    	    	    	    	    	    	    	    	    
273415	1986	    	    	    	    	    	    	    	    	    	    	    	    
273415	1987	    	    	    	    	    	    	    	    	    	    	    	    
273415	1988	    	    	    	    	    	    	    	    	    	    	    	    
273415	1989	    	    	    	    	    	    	    	    	    	    	    	    
273415	1990	    	    	    	    	    	    	    	    	    	    	    	    
273415	1991	    	    	    	    	    	    	    	    	    	    	    	    
273415	1992	    	    	    	    	    	    	    	    	    	    	    	    
273415	1993