"station_id"	"year"	"Jan"	"Feb"	"Mar"	"Apr"	"May"	"Jun"	"Jul"	"Aug"	"Sep"	"Oct"	"Nov"	"Dec"
174566	1970	 -8.5	 -4.6	    	  6.2	 14.0	 18.7	 22.1	 21.6	 15.9	 11.2	  4.4	 -6.5
174566	1971	 -8.0	 -3.9	 -0.2	  5.5	 12.4	 19.2	 21.4	 20.8	 17.3	 12.5	  2.0	 -3.4
174566	1972	 -5.1	 -6.2	 -1.9	  4.4	 13.2	 17.3	 21.3	 19.5	 16.0	  7.8	  1.7	 -5.2
174566	1973	 -4.5	 -5.1	  2.8	  7.6	 11.5	 18.4	 22.4	 22.6	 15.5	 10.5	  3.1	  0.3
174566	1974	 -4.7	 -4.9	 -0.1	  7.1	 10.4	 18.0	 21.0	 21.2	 15.5	  7.1	  3.5	 -1.4
174566	1975	 -4.1	 -4.2	 -0.8	  4.7	 15.3	 18.0	 22.7	 20.9	 14.9	 10.6	  5.9	 -4.5
174566	1976	 -7.9	 -2.8	  0.2	  8.0	 12.6	 20.7	 20.7	 20.1	 15.8	  8.3	  1.6	 -6.8
174566	1977	 -8.8	 -5.4	  3.2	  6.7	 14.7	 17.1	 21.6	 20.4	 15.1	  9.5	  4.8	 -3.9
174566	1978	 -6.9	 -6.8	 -1.3	  4.7	 14.2	 17.9	 21.5	 21.0	 14.7	  9.3	  3.2	 -3.3
174566	1979	 -4.4	 -7.2	  2.8	  6.7	 14.0	 18.6	 22.7	 19.7	 15.9	  9.7	  6.4	 -1.4
174566	1980	 -4.5	 -5.7	  0.2	  7.3	 13.7	 17.4	 22.0	 21.9	 16.0	  8.4	  2.4	 -5.6
174566	1981	 -7.7	  0.4	  2.3	  8.4	 14.8	 19.3	 21.9	 20.1	 15.2	  8.7	  3.7	 -2.1
174566	1982	 -8.8	 -6.3	 -0.5	  5.6	 14.1	 16.2	 21.9	 19.2	 16.1	  9.9	  5.1	 -0.2
174566	1983	 -4.3	 -3.1	  2.0	  7.4	 11.8	 19.1	 22.5	 21.0	 18.1	  9.7	  3.9	 -4.0
174566	1984	 -7.0	 -0.3	 -2.6	  7.0	 12.3	 18.5	 22.0	 21.8	 15.2	 10.7	  4.6	 -1.5
174566	1985	 -9.1	 -3.3	  1.3	  7.0	 13.2	 17.0	 22.3	 20.0	 16.5	 10.6	  3.5	 -4.8
174566	1986	 -4.7	 -5.0	  0.9	  9.0	 13.4	 17.1	 20.3	 19.6	 14.7	  9.4	  1.6	 -2.2
174566	1987	 -5.9	 -5.0	  1.2	  8.2	 13.4	 18.7	 20.9	 19.7	 16.0	  9.6	  2.9	 -1.3
174566	1988	 -5.5	 -3.6	  0.5	  6.7	 14.0	 18.5	 22.9	 22.1	 15.6	  7.6	  4.5	 -3.8
174566	1989	 -3.9	 -5.1	 -0.5	  5.2	 14.5	 18.6	 21.7	 20.6	 16.4	 10.2	  2.4	 -9.8
174566	1990	 -2.0	 -3.7	  1.2	  7.4	 12.1	 18.4	 21.9	 21.8	 15.4	 11.4	  4.2	 -0.5
174566	1991	 -6.0	 -2.6	  2.4	  8.2	 15.4	 19.5	 21.9	 21.8	 15.5	 11.3	  5.0	 -3.8
174566	1992	 -5.0	 -3.6	 -0.4	  6.1	 13.3	 19.3	 19.5	 20.3	 16.4	  8.8	  2.8	 -2.0
174566	1993	 -5.0	 -7.7	 -0.7	  7.1	 14.2	 19.0	 22.1	 22.1	 16.2	  8.1	  4.0	 -1.4