"station_id"	"year"	"Jan"	"Feb"	"Mar"	"Apr"	"May"	"Jun"	"Jul"	"Aug"	"Sep"	"Oct"	"Nov"	"Dec"
278972	1970	    	    	    	    	    	    	    	    	    	    	    	    
278972	1971	    	    	    	    	    	    	    	    	    	    	    	    
278972	1972	    	    	    	    	    	    	    	    	    	    	    	    
278972	1973	    	    	    	    	    	    	    	    	    	    	    	    
278972	1974	    	    	    	    	    	    	    	    	    	    	    	    
278972	1975	    	    	    	    	    	    	    	    	    	    	    	    
278972	1976	    	    	    	    	    	    	    	    	    	    	    	    
278972	1977	    	    	    	    	    	    	    	    	    	    	    	    
278972	1978	    	    	    	    	    	    	    	    	    	    	    	    
278972	1979	    	    	    	    	    	    	    	    	    	    	    	    
278972	1980	    	    	    	    	    	    	    	    	    	    	    	    
278972	1981	    	    	    	    	    	    	    	    	    	    	    	    
278972	1982	    	    	    	    	    	    	    	    	    	    	    	    
278972	1983	    	    	    	    	    	    	    	    	    	    	    	    
278972	1984	    	    	    	    	    	    	    	    	    	    	    	    
278972	1985	    	    	    	    	    	    	    	    	    	    	    	    
278972	1986	    	    	    	    	    	    	    	    	    	    	    	    
278972	1987	    	    	    	    	    	    	    	    	    	    	    	    
278972	1988	    	    	    	    	    	    	    	    	    	    	    	    
278972	1989	    	    	    	    	    	    	    	    	    	    	  2.1	-10.2
278972	1990	 -2.0	 -3.4	  1.1	  6.7	 10.4	 17.7	 20.1	 19.7	 14.5	 10.1	  4.4	 -0.5
278972	1991	 -5.8	 -2.1	  2.0	  8.7	 15.6	 18.2	 20.0	 20.2	 13.9	  9.5	  2.9	 -3.3
278972	1992	 -5.0	 -3.8	 -1.5	  4.9	 12.7	 17.2	 18.2	 18.3	 14.9	  7.0	  1.4	 -3.5
278972	1993	 -4.6	 -7.3	 -0.7	  7.1	 13.5	 17.7	 21.1	 20.3	 14.9	  7.4	  3.6	 -2.2