"station_id"	"year"	"Jan"	"Feb"	"Mar"	"Apr"	"May"	"Jun"	"Jul"	"Aug"	"Sep"	"Oct"	"Nov"	"Dec"
272174	1970	 -7.7	 -3.0	  0.3	  6.9	 14.6	 18.1	 21.7	 20.9	 16.5	 11.4	  4.9	 -5.6
272174	1971	 -6.5	 -2.6	  0.3	  5.6	 12.4	 18.4	 20.7	 20.5	 17.7	 13.0	  2.3	 -2.0
272174	1972	 -3.0	 -4.4	    	  4.9	 13.4	 17.9	 21.6	 19.6	 16.1	  8.8	  2.6	 -2.1
272174	1973	 -2.8	 -2.4	  4.0	  8.7	 12.0	 19.4	 22.3	 22.4	 15.4	 10.2	  3.6	  0.9
272174	1974	 -3.2	 -3.3	  2.4	  9.7	 10.8	 17.1	 20.6	 20.9	 16.0	  7.1	  4.4	 -0.6
272174	1975	 -1.9	 -2.9	  0.3	  5.4	 15.4	 18.2	 22.6	 20.8	 14.9	 11.0	  6.5	 -2.7
272174	1976	 -5.8	 -1.0	  2.2	  9.6	 13.4	 21.0	 20.0	 19.5	 14.8	  8.2	  1.8	 -5.9
272174	1977	 -7.8	 -3.9	  4.1	  7.9	 14.5	 17.1	 20.3	 19.6	 14.4	  9.8	  5.3	 -3.6
272174	1978	 -5.7	 -5.7	 -0.4	  6.1	 13.4	 17.8	 20.2	 20.2	 14.1	  9.4	  3.1	 -3.1
272174	1979	 -3.7	 -6.0	  3.6	  6.2	 14.1	 17.4	 21.8	 19.1	 15.0	  9.0	  6.0	 -0.3
272174	1980	 -3.9	 -5.1	  1.0	  7.7	 12.7	 16.6	 21.5	 21.0	 16.5	  8.1	  1.7	 -3.9
272174	1981	 -7.2	  0.2	  2.0	  8.9	 13.6	 18.3	 20.7	 18.6	 14.6	  7.8	  3.4	 -2.6
272174	1982	 -7.3	 -4.2	  0.7	  6.1	 13.0	 15.5	 20.7	 18.2	 16.1	  9.2	  5.7	  1.6
272174	1983	 -3.6	 -1.9	  2.7	  7.7	 12.5	 18.9	 21.9	 21.3	 17.8	  9.8	  4.7	 -2.6
272174	1984	 -4.9	  0.7	 -1.3	  7.0	 12.7	 19.4	 21.1	 21.1	 14.8	 11.1	  3.9	  0.3
272174	1985	 -7.4	 -1.8	  2.4	  7.4	 14.0	 16.4	 20.5	 19.1	 16.0	 10.0	  4.3	 -4.7
272174	1986	 -3.2	 -4.3	  2.9	  8.3	 13.4	 17.2	 19.9	 19.0	 14.4	  9.7	  3.0	 -1.0
272174	1987	 -5.2	 -4.1	  1.7	  8.3	 13.6	 18.3	 21.1	 18.5	 15.4	  8.9	  3.7	 -0.8
272174	1988	 -4.1	 -2.6	  1.9	  6.7	 13.7	 18.5	 22.4	 22.0	 15.1	  8.2	  4.9	 -3.1
272174	1989	 -2.4	 -3.2	  0.9	  5.8	 14.5	 18.6	 21.2	 20.1	 16.0	  9.8	  3.4	 -8.5
272174	1990	 -0.7	 -2.0	  2.6	  7.7	 11.9	 18.4	 21.4	 21.1	 15.9	 11.9	  5.7	  1.1
272174	1991	 -4.5	 -0.8	  3.2	  9.5	 16.1	 19.0	 21.2	 21.4	 15.1	 11.2	  4.7	 -2.4
272174	1992	 -3.8	 -2.2	    	  6.4	 12.2	 18.3	 19.4	 19.7	 16.1	  8.6	  2.5	 -1.6
272174	1993	 -3.5	 -6.2	    	  8.5	 14.3	 19.0	 21.9	 20.8	 16.5	  8.7	  4.5	 -1.1