"station_id"	"year"	"Jan"	"Feb"	"Mar"	"Apr"	"May"	"Jun"	"Jul"	"Aug"	"Sep"	"Oct"	"Nov"	"Dec"
174193	1970	    	    	    	    	    	    	    	    	    	    	    	    
174193	1971	    	    	    	    	    	    	    	    	    	    	    	    
174193	1972	    	    	    	    	    	    	    	    	    	    	    	    
174193	1973	    	    	    	    	    	    	    	    	    	    	    	    
174193	1974	    	    	    	    	    	    	    	    	    	    	    	    
174193	1975	    	    	    	    	    	    	    	    	    	    	    	    
174193	1976	    	    	    	    	    	    	    	    	    	    	    	    
174193	1977	    	    	    	    	    	    	    	    	    	    	    	    
174193	1978	    	    	    	    	    	    	    	    	    	    	    	    
174193	1979	    	    	    	    	    	    	    	    	    	    	    	    
174193	1980	    	    	    	    	    	    	    	    	    	    	    	    
174193	1981	    	    	    	    	    	    	    	    	    	    	    	    
174193	1982	    	    	    	    	    	    	    	    	    	    	    	    
174193	1983	    	    	    	    	    	    	    	    	    	    	    	    
174193	1984	    	    	    	    	    	    	    	    	    	    	    	    
174193	1985	    	    	    	    	    	    	    	    	    	    	    	    
174193	1986	    	    	    	    	    	    	    	    	    	    	    	    
174193	1987	    	    	    	    	    	    	    	    	    	    	    	    
174193	1988	    	    	    	    	    	    	    	    	    	    	    	    
174193	1989	    	    	    	    	    	 16.5	 19.4	 18.6	 14.4	  8.5	  2.8	 -9.2
174193	1990	 -1.1	 -3.8	  0.7	  6.0	  9.4	 15.5	 19.5	 19.9	 14.4	 10.5	  5.0	  0.4
174193	1991	 -5.5	 -1.9	  2.0	  6.5	 13.1	 17.4	 19.7	 19.4	 14.0	  9.4	  4.1	 -2.7
174193	1992	 -4.9	 -3.2	 -2.0	  4.0	  9.7	 15.9	 17.5	 18.0	 13.8	  7.6	  2.1	 -1.8
174193	1993	 -4.4	 -7.8	 -2.1	  5.0	 11.4	 15.7	 19.7	 18.7	 14.3	  6.7	  3.2	 -1.5