"station_id"	"year"	"Jan"	"Feb"	"Mar"	"Apr"	"May"	"Jun"	"Jul"	"Aug"	"Sep"	"Oct"	"Nov"	"Dec"
173944	1970	    	    	    	    	    	    	    	    	    	    	    	    
173944	1971	    	    	    	    	    	    	    	    	    	    	    	    
173944	1972	    	    	    	    	    	    	    	    	    	    	    	    
173944	1973	    	    	    	    	    	    	    	    	    	    	    	    
173944	1974	    	    	    	    	    	    	    	    	    	    	    	    
173944	1975	    	    	    	    	    	    	    	    	    	    	    	    
173944	1976	    	    	    	    	    	    	    	    	    	    	    	    
173944	1977	    	    	    	    	    	    	    	    	    	    	    	    
173944	1978	    	    	    	    	    	    	    	    	    	    	    	    
173944	1979	    	    	    	    	    	    	    	    	    	    	    	    
173944	1980	    	    	    	    	    	    	    	    	    	    	    	    
173944	1981	    	    	    	    	    	    	    	    	    	    	    	    
173944	1982	    	    	    	    	    	    	    	    	    	    	    	    
173944	1983	    	    	    	    	    	    	    	    	    	    	    	    
173944	1984	    	    	    	    	    	    	    	    	    	    	    	    
173944	1985	    	    	    	    	    	 15.4	 19.5	 17.2	 14.0	  7.5	 -0.8	 -7.5
173944	1986	 -6.6	 -7.9	 -2.4	  6.3	 11.6	 14.4	 17.4	 17.0	 11.1	  6.0	 -2.3	 -6.4
173944	1987	 -7.8	 -7.7	 -1.0	  7.2	 11.3	 16.0	 18.7	 16.8	 13.1	  7.2	 -0.5	 -6.0
173944	1988	 -6.7	 -6.4	 -2.7	  4.8	 13.1	 15.9	 20.1	 19.0	 12.2	  5.4	  2.0	 -7.0
173944	1989	 -7.0	 -7.6	 -3.5	  3.2	 13.9	 16.4	 18.1	 17.7	 13.3	  6.9	 -1.4	-10.5
173944	1990	 -5.9	 -7.2	 -2.4	  5.1	 10.1	 16.9	 19.4	 19.4	 12.7	  8.1	  0.8	 -4.1
173944	1991	 -8.9	 -5.1	 -1.6	  4.6	 12.4	 16.8	 18.9	 19.2	 12.1	  8.4	  1.1	 -7.9
173944	1992	 -7.9	 -7.8	 -4.6	  3.6	 12.0	 16.4	 16.4	 18.0	 13.9	  5.6	 -1.0	 -5.6
173944	1993	 -8.1	 -9.1	 -3.0	  4.5	 11.0	 15.8	 18.7	 19.2	 13.4	  5.1	  0.1	 -4.2