"station_id"	"year"	"Jan"	"Feb"	"Mar"	"Apr"	"May"	"Jun"	"Jul"	"Aug"	"Sep"	"Oct"	"Nov"	"Dec"
275013	1970	    	    	    	    	    	    	 20.4	    	    	    	    	    
275013	1971	    	    	    	    	    	    	    	    	    	    	    	    
275013	1972	    	    	    	    	    	    	    	    	    	    	    	    
275013	1973	    	    	    	    	    	    	    	    	    	  8.9	    	 -1.2
275013	1974	    	    	    	    	 10.5	    	    	    	    	    	    	    
275013	1975	    	    	    	  3.4	    	 17.0	 20.9	    	 12.8	    	    	    
275013	1976	    	    	    	    	    	    	    	    	    	  6.0	    	    
275013	1977	    	 -5.2	    	    	    	 16.5	    	    	 13.8	    	  4.0	    
275013	1978	    	    	 -2.3	    	    	    	    	    	    	    	    	    
275013	1979	    	    	    	    	 13.1	    	    	    	 13.8	    	    	    
275013	1980	    	    	    	    	 12.2	 15.5	    	    	    	    	  0.7	    
275013	1981	 -8.4	    	    	    	    	 17.4	    	 18.0	    	    	    	 -4.0
275013	1982	    	    	    	    	    	    	    	    	    	    	    	    
275013	1983	    	    	    	    	    	    	    	    	    	    	    	    
275013	1984	    	    	    	    	    	    	    	    	    	    	    	    
275013	1985	    	    	    	    	    	    	    	    	    	    	    	    
275013	1986	    	    	    	    	    	    	    	    	    	    	    	    
275013	1987	    	    	    	    	    	    	    	    	    	    	    	    
275013	1988	    	    	    	    	    	    	    	    	    	    	    	    
275013	1989	    	    	    	    	    	    	    	    	    	    	    	    
275013	1990	    	    	    	    	    	    	    	    	    	    	    	    
275013	1991	    	    	    	    	    	    	    	    	    	    	    	    
275013	1992	    	    	    	    	    	    	    	    	    	    	    	    
275013	1993