"station_id"	"year"	"Jan"	"Feb"	"Mar"	"Apr"	"May"	"Jun"	"Jul"	"Aug"	"Sep"	"Oct"	"Nov"	"Dec"
270910	1970	    	    	    	    	    	    	    	    	    	    	    	    
270910	1971	    	    	    	    	    	    	    	    	    	    	    	    
270910	1972	    	    	    	    	    	    	    	    	    	    	    	    
270910	1973	    	    	    	    	    	    	    	    	    	    	    	    
270910	1974	    	    	    	    	    	    	    	    	    	    	    	    
270910	1975	    	    	    	    	    	    	    	    	    	    	    	    
270910	1976	    	    	    	    	    	    	    	    	    	    	    	    
270910	1977	    	    	    	    	    	    	    	    	    	    	    	    
270910	1978	    	    	    	    	    	    	    	    	    	    	    	    
270910	1979	    	    	    	    	    	    	    	    	    	    	    	    
270910	1980	    	    	    	    	    	    	    	    	    	    	    	    
270910	1981	 -8.4	    	    	    	    	    	    	    	    	    	    	    
270910	1982	    	    	    	    	    	    	    	    	    	    	    	    
270910	1983	    	    	    	    	    	    	    	    	    	    	    	    
270910	1984	    	    	    	    	    	    	    	    	    	    	    	    
270910	1985	    	    	    	    	    	    	    	    	    	    	    	    
270910	1986	    	    	    	    	    	    	    	    	    	    	    	    
270910	1987	    	    	    	    	    	    	    	    	    	    	    	    
270910	1988	    	    	    	    	    	    	    	    	    	    	    	    
270910	1989	    	    	    	    	    	    	    	    	    	    	    	    
270910	1990	    	    	    	    	    	    	    	    	    	    	    	    
270910	1991	    	    	    	    	    	    	    	    	    	    	    	    
270910	1992	    	    	    	    	    	    	    	    	    	    	    	    
270910	1993