"station_id"	"year"	"Jan"	"Feb"	"Mar"	"Apr"	"May"	"Jun"	"Jul"	"Aug"	"Sep"	"Oct"	"Nov"	"Dec"
175309	1970	-10.6	 -5.9	 -0.5	  5.2	 11.5	 17.5	 22.0	 19.9	 13.5	  9.5	  1.7	 -8.8
175309	1971	 -8.7	 -6.6	 -2.8	  4.0	 12.5	 17.4	 20.8	 19.1	 15.5	  9.8	  0.2	 -7.0
175309	1972	 -7.2	 -8.2	 -5.1	  2.1	    	    	    	    	    	    	    	    
175309	1973	    	    	    	    	    	    	    	    	    	    	    	    
175309	1974	    	    	    	    	    	    	    	    	    	    	    	    
175309	1975	    	    	    	    	    	    	    	    	    	    	    	    
175309	1976	    	    	    	    	    	    	    	    	    	    	    	    
175309	1977	    	    	    	    	    	    	    	    	    	    	    	    
175309	1978	    	    	    	    	    	    	    	    	    	    	    	    
175309	1979	    	    	    	    	    	    	    	    	    	    	    	    
175309	1980	    	    	    	    	    	    	    	    	    	    	    	    
175309	1981	    	    	    	    	    	    	    	    	    	    	    	    
175309	1982	    	    	    	    	    	    	    	    	    	    	    	    
175309	1983	    	    	    	    	    	    	    	    	    	    	    	    
175309	1984	    	    	    	    	    	    	    	    	    	    	    	    
175309	1985	    	    	    	    	    	    	    	    	    	    	    	    
175309	1986	    	    	    	    	    	    	    	    	    	    	    	    
175309	1987	    	    	    	    	    	    	    	    	    	    	    	    
175309	1988	    	    	    	    	    	    	    	    	    	    	    	    
175309	1989	    	    	    	    	    	    	    	    	    	    	    	    
175309	1990	    	    	    	    	    	    	    	    	    	    	    	    
175309	1991	    	    	    	    	    	    	    	    	    	    	    	    
175309	1992	    	    	    	    	    	    	    	    	    	    	    	    
175309	1993