"station_id"	"year"	"Jan"	"Feb"	"Mar"	"Apr"	"May"	"Jun"	"Jul"	"Aug"	"Sep"	"Oct"	"Nov"	"Dec"
174817	1970	    	    	    	    	    	    	    	    	    	    	    	    
174817	1971	    	    	    	    	    	    	    	    	    	    	    	    
174817	1972	    	    	    	    	    	    	    	    	    	    	    	    
174817	1973	    	    	    	    	    	    	    	    	    	    	    	    
174817	1974	    	    	    	    	    	    	    	    	    	    	    	    
174817	1975	    	    	    	    	    	    	    	    	    	    	    	    
174817	1976	    	    	    	    	    	    	    	    	    	    	    	    
174817	1977	    	    	    	    	    	    	    	    	    	    	    	    
174817	1978	    	    	    	    	    	    	    	    	    	    	    	    
174817	1979	    	    	    	    	    	    	    	    	    	    	  5.5	 -2.2
174817	1980	    	    	    	    	    	 16.8	    	    	    	    	    	    
174817	1981	 -5.8	 -1.2	    	    	    	    	 22.1	    	 23.5	    	    	    
174817	1982	    	    	    	    	    	    	    	    	    	    	    	    
174817	1983	    	    	    	    	    	    	    	    	    	    	    	    
174817	1984	    	    	    	    	    	    	    	    	    	    	    	    
174817	1985	    	    	    	    	    	    	    	    	    	    	    	    
174817	1986	    	    	    	    	    	    	    	    	    	    	    	    
174817	1987	    	    	    	    	    	    	    	    	    	    	    	    
174817	1988	    	    	    	    	    	    	    	    	    	    	    	    
174817	1989	    	    	    	    	    	    	    	    	    	    	    	    
174817	1990	    	    	    	    	    	    	    	    	    	    	    	    
174817	1991	    	    	    	    	    	    	    	    	    	    	    	    
174817	1992	    	    	    	    	    	    	    	    	    	    	    	    
174817	1993