"station_id"	"year"	"Jan"	"Feb"	"Mar"	"Apr"	"May"	"Jun"	"Jul"	"Aug"	"Sep"	"Oct"	"Nov"	"Dec"
196486	1970	 -6.8	 -2.2	  0.9	  7.1	 13.5	 18.3	 22.1	 21.1	 16.7	 11.6	  6.1	 -1.7
196486	1971	 -5.5	 -2.1	  1.9	  5.9	 12.1	 18.5	 22.0	 21.4	 18.5	 13.4	  4.3	  0.8
196486	1972	 -1.9	 -3.7	  1.2	  4.6	 12.6	 17.7	 21.0	 19.9	 17.4	  8.5	  4.4	  1.6
196486	1973	 -1.2	 -2.0	  4.8	  8.8	 12.6	 20.1	 21.9	 22.2	 16.8	 11.0	  5.5	  2.4
196486	1974	 -1.6	 -2.9	  2.5	  8.5	 11.7	 17.3	 21.2	 21.0	 16.8	  8.4	  5.7	  0.7
196486	1975	 -0.1	 -2.1	  1.1	  4.9	 14.5	 18.6	 22.5	 21.2	 15.6	 12.3	  7.3	  0.2
196486	1976	 -4.0	  0.5	  3.3	  9.9	 13.4	 20.2	 21.1	 20.3	 15.9	  9.5	  3.1	 -3.7
196486	1977	 -7.1	 -3.0	  4.7	  7.6	 14.2	 17.4	 21.4	 21.2	 15.9	 10.7	  6.5	 -0.8
196486	1978	 -3.3	 -5.8	 -0.4	  6.4	 12.5	 18.0	 20.9	 21.0	 14.3	  9.8	  5.2	    
196486	1979	 -1.7	 -5.6	  4.0	  6.9	 14.8	 17.6	 22.6	 20.3	 16.1	 11.1	  7.8	  1.6
196486	1980	 -2.2	 -4.3	  1.4	  8.1	 12.8	 17.6	 22.7	 22.0	 17.7	  9.8	  3.8	 -2.8
196486	1981	 -7.4	  0.4	  1.9	  8.6	 13.7	 19.4	 21.6	 20.0	 15.8	  9.4	  5.2	    
196486	1982	 -6.3	 -1.8	  1.9	  6.3	 12.3	 15.4	 21.4	 18.9	 16.3	 10.6	  7.7	  3.2
196486	1983	 -1.3	 -1.4	  3.6	  7.2	 12.4	 18.4	 21.9	 20.5	 18.2	 11.4	  6.9	 -0.6
196486	1984	 -3.6	  1.8	 -0.8	  6.5	 12.9	 18.9	 21.5	 21.3	 15.4	 11.3	  5.9	  3.3
196486	1985	 -5.9	 -1.6	  2.9	  7.5	 12.9	 16.6	 21.4	 19.9	 16.8	 11.1	  7.3	 -1.8
196486	1986	 -1.3	 -2.8	  2.8	  7.8	 12.7	 17.1	 20.4	 19.3	 14.8	 11.0	  4.0	  0.7
196486	1987	 -2.6	 -3.1	  1.5	  6.9	 12.4	 16.2	 21.1	 19.8	 16.5	  9.7	  5.1	  0.7
196486	1988	 -4.3	 -1.0	  2.3	  6.9	 12.9	 18.7	 22.9	 23.1	 16.1	  8.9	  6.2	 -0.6
196486	1989	 -0.6	 -2.8	  1.5	  6.5	 14.1	 19.5	 21.3	 21.1	 17.2	 11.6	  5.2	 -7.3
196486	1990	  1.6	  0.5	  3.8	  7.2	 11.8	 18.6	    	 22.2	 17.5	 14.8	  8.5	  4.2
196486	1991	 -0.8	  2.2	  5.0	  9.9	 16.5	 19.7	 22.7	 22.8	 16.7	 13.3	  7.4	  2.3
196486	1992	 -0.7	    	  1.9	  7.1	 12.8	 19.2	 20.3	 20.6	 17.2	 10.8	  5.9	  1.6
196486	1993	    	 -3.1	  1.9	  8.1	 14.7	 19.5	 22.3	 22.1	 18.0	 11.1	  7.3	  1.3