"station_id"	"year"	"Jan"	"Feb"	"Mar"	"Apr"	"May"	"Jun"	"Jul"	"Aug"	"Sep"	"Oct"	"Nov"	"Dec"
275412	1970	    	    	    	    	    	 15.4	    	    	    	    	  3.1	    
275412	1971	    	    	    	    	    	    	    	    	 17.6	    	    	    
275412	1972	    	    	    	    	    	    	    	    	    	    	    	    
275412	1973	    	    	    	    	    	    	    	    	    	    	    	    
275412	1974	    	    	    	    	    	    	    	    	    	    	    	    
275412	1975	 -3.0	    	    	    	    	    	    	    	    	    	    	    
275412	1976	    	 -1.0	    	    	    	    	    	    	    	    	    	    
275412	1977	    	 -3.9	    	    	    	    	    	    	    	    	    	    
275412	1978	    	    	    	  6.5	    	    	    	    	    	    	    	    
275412	1979	    	    	    	    	    	    	    	    	    	    	    	    
275412	1980	    	 -5.3	    	    	    	 17.2	    	    	    	    	  2.1	    
275412	1981	 -7.2	  0.2	    	    	    	    	    	    	    	    	    	    
275412	1982	    	    	    	    	    	    	    	    	    	    	    	    
275412	1983	    	    	    	    	    	    	    	    	    	    	    	    
275412	1984	    	    	    	    	    	    	    	    	    	    	    	    
275412	1985	    	    	    	    	    	    	    	    	    	    	    	    
275412	1986	    	    	    	    	    	    	    	    	    	    	    	    
275412	1987	    	    	    	    	    	    	    	    	    	    	    	    
275412	1988	    	    	    	    	    	    	    	    	    	    	    	    
275412	1989	    	    	    	    	    	    	    	    	    	    	    	    
275412	1990	    	    	    	    	    	    	    	    	    	    	    	    
275412	1991	    	    	    	    	    	    	    	    	    	    	    	    
275412	1992	    	 -2.2	 -0.2	  6.8	 13.4	 18.5	 19.6	 19.4	 15.7	  8.2	  2.5	 -2.1
275412	1993	 -3.4	 -6.3	 -0.2	  8.4	 14.8	 19.1	 22.0	 21.2	 15.8	  8.4	  4.1	 -1.6