"station_id"	"year"	"Jan"	"Feb"	"Mar"	"Apr"	"May"	"Jun"	"Jul"	"Aug"	"Sep"	"Oct"	"Nov"	"Dec"
171472	1970	    	    	    	    	    	    	    	    	    	    	    	    
171472	1971	    	    	    	    	    	    	    	    	    	    	    	    
171472	1972	    	    	    	    	    	    	    	    	    	    	    	    
171472	1973	    	    	    	    	    	    	    	    	    	    	    	    
171472	1974	    	    	    	    	    	    	    	    	    	    	    	    
171472	1975	    	    	    	    	    	    	    	    	    	    	    	    
171472	1976	    	    	    	    	    	    	    	    	    	    	    	    
171472	1977	    	    	    	    	    	    	    	    	    	    	    	    
171472	1978	    	    	    	    	    	    	    	    	    	    	    	    
171472	1979	    	    	    	    	    	    	    	    	    	    	    	    
171472	1980	    	    	    	    	    	    	    	    	    	    	    	    
171472	1981	    	    	    	    	    	    	    	    	    	    	    	    
171472	1982	    	    	    	    	    	    	    	    	    	    	    	    
171472	1983	    	    	    	    	    	    	    	    	    	    	    	    
171472	1984	    	    	    	    	    	    	    	    	    	    	    	    
171472	1985	    	 -6.2	 -4.0	  1.2	  9.2	 14.0	 18.0	 16.3	 13.2	  6.8	 -2.0	 -9.2
171472	1986	 -7.5	 -8.4	 -3.1	  5.9	 11.3	 13.1	 16.5	 16.3	 10.2	  5.3	 -3.1	 -6.8
171472	1987	 -8.1	 -8.7	 -0.5	  6.2	 10.6	 16.1	 18.5	 16.3	 12.9	  6.5	 -1.6	 -6.2
171472	1988	 -7.1	 -7.2	 -4.3	  3.5	 11.9	 15.0	 19.4	 18.0	 11.2	  4.5	  0.8	 -7.2
171472	1989	 -7.2	 -8.2	 -3.3	  2.5	 12.1	 16.1	 17.7	 17.1	 13.3	    	 -2.2	-11.0
171472	1990	 -5.9	 -7.1	 -4.1	  2.0	  8.2	 15.2	 17.5	 17.8	 11.2	  6.1	 -1.0	 -6.4
171472	1991	 -8.8	    	 -4.7	    	    	 15.4	 17.2	 17.9	  9.6	  5.5	 -1.1	 -8.4
171472	1992	 -8.0	 -8.3	 -5.6	  0.9	 10.0	 15.2	 14.6	 16.2	 12.3	  3.5	 -2.1	 -6.3
171472	1993	 -8.3	 -8.3	 -4.4	  2.9	  9.3	 14.5	 17.2	 17.6	 11.1	  2.8	 -1.4	 -6.0