"station_id"	"year"	"Jan"	"Feb"	"Mar"	"Apr"	"May"	"Jun"	"Jul"	"Aug"	"Sep"	"Oct"	"Nov"	"Dec"
270741	1970	 -9.3	 -6.0	 -1.2	  5.9	 13.4	 17.4	 20.8	 20.3	 14.6	  9.8	  3.6	 -6.3
270741	1971	 -7.4	 -4.0	 -1.2	  5.0	 11.6	 18.0	 20.2	 19.5	 15.8	 11.2	  0.8	 -3.8
270741	1972	 -5.8	 -6.0	 -1.9	  3.3	 12.7	 16.8	 20.3	 18.0	 14.4	  6.2	  0.6	 -4.3
270741	1973	 -3.8	 -5.5	  2.5	  7.5	 11.2	 18.3	 20.9	 21.1	 14.1	  8.7	  2.6	 -2.1
270741	1974	 -4.7	 -6.4	 -1.3	  6.6	 10.3	 16.9	 19.8	 19.2	 14.1	  5.3	  2.9	 -2.4
270741	1975	 -4.6	 -4.6	 -1.7	  3.5	 15.3	 17.2	 21.1	 18.7	 13.0	  9.2	  5.4	 -4.7
270741	1976	 -7.2	 -3.2	 -0.6	  8.4	 11.7	 20.0	 18.5	 18.3	 13.1	  6.5	  0.7	 -7.6
270741	1977	 -9.3	 -5.4	  2.7	  7.0	 14.1	 16.3	 19.3	 18.5	 14.1	  8.0	  4.1	 -5.1
270741	1978	 -7.1	 -7.8	 -2.2	  4.5	 13.4	 17.1	 19.7	 18.7	 12.3	  7.1	  1.7	 -4.7
270741	1979	 -6.1	 -7.9	  1.7	  5.9	 12.9	 17.2	 21.0	 18.3	 13.4	  7.8	  4.7	 -1.9
270741	1980	 -5.4	 -6.9	 -0.6	  6.3	 12.4	 15.9	 20.6	 20.1	 14.5	  7.3	  1.1	 -5.7
270741	1981	 -8.4	 -1.9	  0.8	  7.7	 13.8	 17.9	 20.2	 18.5	 14.3	  6.8	  3.3	 -3.3
270741	1982	 -9.4	 -6.2	 -1.4	  4.5	 13.6	 15.3	 20.2	 17.6	 14.6	  7.9	  4.8	 -0.5
270741	1983	 -5.5	 -3.2	  1.5	  6.5	 11.3	 18.2	 21.2	 20.1	 16.2	  8.2	  3.6	 -4.6
270741	1984	 -6.7	 -1.2	 -3.0	  6.8	 11.6	 18.1	 20.2	 20.9	 14.0	  9.9	  2.9	 -1.0
270741	1985	 -8.6	 -3.7	  0.8	  6.7	 12.8	 16.4	 20.5	 18.8	 14.9	  8.5	  3.1	 -5.9
270741	1986	 -5.9	 -6.9	  0.4	  8.3	 13.6	 16.0	 18.8	 17.9	 12.7	  8.0	  0.1	 -2.9
270741	1987	 -6.4	 -5.9	  0.2	  7.4	 12.5	 17.5	 20.8	 17.6	 14.0	  6.8	  1.9	 -2.2
270741	1988	 -7.1	 -5.2	 -0.7	  6.0	 13.3	 17.1	 21.5	 20.8	 13.6	  6.2	  3.1	 -5.8
270741	1989	 -4.8	 -6.2	 -1.2	  4.6	 14.2	 17.9	 20.4	 19.0	 15.1	  9.1	  1.8	-10.7
270741	1990	 -3.0	 -4.2	  0.6	  7.1	 11.2	 18.4	 21.2	 20.7	 15.0	 10.6	  3.7	 -1.4
270741	1991	 -6.2	 -2.7	  1.6	  8.4	 15.3	 18.4	    	    	    	    	    	    
270741	1992	    	    	    	    	    	    	    	    	    	    	    	    
270741	1993