"station_id"	"year"	"Jan"	"Feb"	"Mar"	"Apr"	"May"	"Jun"	"Jul"	"Aug"	"Sep"	"Oct"	"Nov"	"Dec"
273530	1970	 -8.9	 -4.8	 -1.9	  4.7	 12.6	 16.3	 19.9	 18.8	 14.3	  9.5	  2.7	 -7.0
273530	1971	 -7.5	 -3.6	 -2.6	  2.9	 11.2	 16.4	 18.2	 17.6	 15.3	 10.7	 -0.8	 -4.0
273530	1972	 -5.5	 -6.1	 -1.9	  1.7	 11.9	 16.1	 19.4	 16.9	 13.2	  6.2	 -0.2	 -4.4
273530	1973	 -3.9	 -4.6	  2.4	  4.7	 10.6	 17.5	 19.9	 20.3	 12.8	  8.5	  1.3	    
273530	1974	 -4.7	 -6.2	    	    	    	    	    	    	    	    	    	    
273530	1975	    	    	    	    	    	 16.7	 20.4	 18.3	 12.5	  9.0	  4.3	 -4.6
273530	1976	 -7.4	 -3.2	 -0.6	  6.5	 10.9	 19.3	 17.7	 17.7	 12.7	  6.2	 -0.2	 -7.5
273530	1977	 -8.8	 -5.5	  1.8	  5.6	 13.3	 15.6	 18.3	 17.8	 13.3	  7.1	  3.0	 -4.8
273530	1978	 -7.8	 -7.8	 -2.8	  3.7	 12.8	 15.9	 18.5	 18.2	 11.7	  6.6	  0.7	 -5.5
273530	1979	 -5.5	 -6.9	  1.2	  5.2	 12.3	 16.1	 19.7	 17.6	 13.0	  7.6	  4.4	 -2.7
273530	1980	 -7.2	 -7.8	 -1.5	  5.3	 11.6	 14.7	 19.5	 18.9	 13.6	  6.3	 -0.5	 -5.8
273530	1981	 -8.3	 -0.8	 -0.3	  6.4	 12.7	 16.6	 19.4	 17.7	 13.8	  5.7	  2.1	 -4.0
273530	1982	 -8.2	 -6.0	 -1.7	  3.5	 12.3	 14.7	 18.7	 16.6	 13.8	  6.9	  3.7	 -1.6
273530	1983	 -5.6	 -3.9	 -0.4	  5.8	 10.8	 17.1	 19.6	 18.5	 14.9	  7.3	  2.4	 -4.9
273530	1984	 -6.9	 -1.4	 -2.7	  6.1	 10.8	 17.5	 19.3	 19.9	 12.1	  8.2	  1.7	 -2.2
273530	1985	 -9.5	 -4.7	  0.1	  6.2	 12.2	 14.6	 18.8	 17.0	 14.0	  7.8	  2.3	 -6.1
273530	1986	 -5.5	 -7.3	 -0.4	  7.3	 13.0	 15.1	 18.4	 17.6	 12.7	  7.4	 -0.4	 -3.7
273530	1987	 -5.8	 -6.8	 -0.1	  7.4	 12.2	 16.9	 19.7	 16.5	 13.6	  6.5	  1.3	 -2.6
273530	1988	 -5.6	 -5.2	 -1.6	  4.7	 12.7	 15.2	 20.1	 18.8	 11.5	  5.0	  1.2	 -6.2
273530	1989	 -5.3	 -7.0	 -2.3	  3.3	 13.1	 17.3	 18.8	 17.6	 14.1	  8.0	  1.1	-10.6
273530	1990	 -3.6	 -4.6	  0.2	  5.9	 10.2	 17.0	 19.7	 19.4	 14.0	 10.0	  3.4	 -2.1
273530	1991	 -6.6	 -3.8	  0.9	  7.5	 13.4	 16.5	 18.0	 18.4	 11.8	  7.9	  2.1	 -5.3
273530	1992	 -6.6	 -5.6	 -4.0	  3.4	 10.3	 14.9	 16.4	 16.5	 12.8	  4.7	 -0.2	 -3.7
273530	1993	 -6.1	 -8.3	 -3.1	  5.2	 11.8	 15.6	 18.9	 18.6	 13.5	  5.1	  1.0	 -3.9