"station_id"	"year"	"Jan"	"Feb"	"Mar"	"Apr"	"May"	"Jun"	"Jul"	"Aug"	"Sep"	"Oct"	"Nov"	"Dec"
170371	1970	 -8.8	 -4.1	  0.1	  5.7	 13.0	 17.2	 20.7	 19.8	 15.1	 10.9	  4.4	 -6.5
170371	1971	 -7.1	 -3.8	  0.3	  5.4	 12.5	 17.3	 20.2	 19.6	 16.5	 12.1	  2.7	 -2.4
170371	1972	 -3.4	 -4.9	 -2.0	  4.4	 13.0	 15.7	 19.6	 19.3	 16.1	  7.8	  2.4	 -3.8
170371	1973	 -3.5	 -4.3	  3.1	  7.2	 10.8	    	 20.9	 20.8	 15.0	  9.9	  3.4	  1.2
170371	1974	 -4.0	 -5.3	  0.2	  7.8	 10.0	 16.9	 19.2	 20.6	 14.7	  7.4	  4.2	 -0.5
170371	1975	 -3.3	 -4.0	  0.2	  5.6	 13.5	 17.5	 20.9	 19.8	 14.1	 10.3	  6.8	 -2.4
170371	1976	 -5.7	 -1.6	  1.1	  7.3	 12.3	 19.2	    	 19.4	 15.0	  8.7	  2.5	 -5.4
170371	1977	 -7.5	 -4.6	  3.1	  6.3	 13.7	 15.8	 20.1	 18.4	 14.3	 10.5	  5.4	 -2.3
170371	1978	 -5.9	 -5.8	 -0.6	  5.5	 13.1	 16.4	 20.2	 20.5	 13.9	  8.8	  1.6	 -2.4
170371	1979	 -3.6	 -6.0	  3.1	  6.6	 12.8	 17.6	 20.5	 18.7	 15.1	  9.5	  6.2	 -1.2
170371	1980	 -4.1	 -5.5	 -0.1	  7.3	 13.8	 18.3	 21.7	    	 14.9	  8.3	  2.4	 -3.9
170371	1981	 -8.3	  0.1	  2.1	  7.5	 12.8	 17.2	    	 18.7	 14.9	  8.5	  3.2	 -1.7
170371	1982	 -9.0	 -5.8	 -0.5	  4.9	 12.0	 15.5	 20.4	 17.6	    	    	    	    
170371	1983	    	    	    	    	    	    	    	    	    	    	    	    
170371	1984	    	    	    	    	    	    	    	    	    	    	    	    
170371	1985	    	    	    	    	    	    	    	    	    	    	    	    
170371	1986	    	    	    	    	    	    	    	    	    	    	    	    
170371	1987	    	    	    	    	    	    	    	    	    	    	    	    
170371	1988	    	    	    	    	    	    	    	    	    	    	    	    
170371	1989	    	    	    	    	    	    	    	    	    	    	    	    
170371	1990	    	    	    	    	    	    	    	    	    	    	    	    
170371	1991	    	    	    	    	    	    	    	    	    	    	    	    
170371	1992	    	    	    	    	    	    	    	    	    	    	    	    
170371	1993