"station_id"	"year"	"Jan"	"Feb"	"Mar"	"Apr"	"May"	"Jun"	"Jul"	"Aug"	"Sep"	"Oct"	"Nov"	"Dec"
196977	1970	 -6.2	 -1.3	  1.4	  7.5	 13.4	 17.6	 21.0	 20.9	 17.0	 11.9	  7.0	 -1.4
196977	1971	 -4.9	 -1.4	  1.9	  6.0	 12.2	 18.1	 20.3	 20.5	 18.5	 13.9	  5.1	  1.2
196977	1972	 -0.5	 -2.4	  1.2	  5.1	 11.9	 16.5	 20.0	 19.5	 17.1	  9.4	  4.8	  1.1
196977	1973	 -0.9	 -1.9	  4.7	  8.5	 12.1	 18.6	 21.3	 21.6	 16.7	 11.7	  5.5	  3.1
196977	1974	 -0.4	 -2.1	  3.0	  9.5	 11.0	 16.6	 20.8	 20.7	 16.6	  9.5	  6.4	  1.8
196977	1975	  0.5	 -1.1	  1.6	  5.8	 13.6	 17.7	 21.7	 20.7	 15.5	 12.2	  8.8	  0.5
196977	1976	 -3.5	  1.0	  3.1	 10.2	 13.1	 19.5	 20.3	 19.8	 16.1	 10.1	  4.0	 -2.8
196977	1977	 -5.5	 -1.8	  5.1	  8.3	 14.5	 16.8	 21.1	 20.7	 15.9	 11.2	  6.9	  0.2
196977	1978	 -3.0	 -4.4	  1.2	  6.9	 13.4	 17.4	 20.5	 20.9	 15.6	 11.0	  5.8	  0.7
196977	1979	 -1.0	 -6.2	  3.9	  7.3	 14.3	 17.3	 21.3	 19.7	 16.3	 10.7	  8.1	  2.1
196977	1980	 -1.9	 -3.5	  1.6	  7.9	 12.8	 16.9	 21.3	 21.3	 17.9	 10.1	  4.8	 -2.3
196977	1981	 -6.2	  1.8	  3.0	  9.4	 13.5	 18.6	 21.2	 19.8	 15.8	  9.8	  5.9	  0.6
196977	1982	 -5.6	 -1.5	  2.4	  6.6	 12.4	 15.3	 20.9	 19.2	 16.7	 11.2	  7.5	  3.3
196977	1983	  0.8	    	    	    	    	    	    	    	    	    	    	    
196977	1984	    	    	    	    	    	    	    	    	    	    	    	    
196977	1985	    	    	    	    	    	    	    	    	    	    	    	    
196977	1986	    	    	    	    	    	    	    	    	    	    	    	    
196977	1987	    	    	    	    	    	    	    	    	    	    	    	    
196977	1988	    	    	    	    	    	    	    	    	    	    	    	    
196977	1989	    	    	    	    	    	    	    	    	    	    	    	    
196977	1990	    	    	    	    	    	    	    	    	    	    	    	    
196977	1991	    	    	    	    	    	    	    	    	    	    	    	    
196977	1992	    	    	    	    	    	    	    	    	    	    	    	    
196977	1993