"station_id"	"year"	"Jan"	"Feb"	"Mar"	"Apr"	"May"	"Jun"	"Jul"	"Aug"	"Sep"	"Oct"	"Nov"	"Dec"
191992	1970	    	    	    	    	    	    	    	    	    	    	    	    
191992	1971	 -6.1	 -2.7	  0.7	  6.1	 12.6	 18.8	 20.9	 20.6	 18.0	 13.4	  3.4	 -1.3
191992	1972	 -3.4	 -4.7	 -0.4	  5.1	 13.1	 17.5	 21.3	 19.1	 15.5	  7.4	  2.5	 -2.1
191992	1973	 -2.2	 -4.3	  3.8	  8.7	 12.0	 19.3	 21.6	 21.6	 14.7	  9.4	  3.4	  0.4
191992	1974	 -2.7	 -4.0	  1.2	  8.6	 11.2	 17.3	 20.8	 20.0	 15.2	  6.8	  4.7	  0.1
191992	1975	 -2.1	 -3.2	  0.1	  5.3	 15.3	 17.8	 21.3	 20.7	 14.6	 10.7	  7.3	 -3.0
191992	1976	 -6.4	 -0.7	  2.1	  9.9	 13.4	 20.8	 20.4	 19.5	 14.7	  8.2	  2.3	 -5.4
191992	1977	 -7.7	 -3.2	  4.7	  8.4	 14.9	 17.1	 20.9	 20.2	 14.8	  9.3	  5.1	 -3.1
191992	1978	 -5.8	 -6.2	 -0.4	  6.2	 13.4	 17.0	    	    	    	    	    	    
191992	1979	    	    	    	    	    	    	    	    	    	    	    	    
191992	1980	    	    	    	    	    	    	    	    	    	    	    	    
191992	1981	    	    	    	    	    	    	    	    	    	    	    	    
191992	1982	    	    	    	    	    	    	    	    	    	    	    	    
191992	1983	    	    	    	    	    	    	    	    	    	    	    	    
191992	1984	    	    	    	    	    	    	    	    	    	    	    	    
191992	1985	    	    	    	    	    	    	    	    	    	    	    	    
191992	1986	    	    	    	    	    	    	    	    	    	    	    	    
191992	1987	    	    	    	    	    	    	    	    	    	    	    	    
191992	1988	    	    	    	    	    	    	    	    	    	    	    	    
191992	1989	    	    	    	    	    	    	    	    	    	    	    	    
191992	1990	    	    	    	    	    	    	    	    	    	    	    	    
191992	1991	    	    	    	    	    	    	    	    	    	    	    	    
191992	1992	    	    	    	    	    	    	    	    	    	    	    	    
191992	1993