"station_id"	"year"	"Jan"	"Feb"	"Mar"	"Apr"	"May"	"Jun"	"Jul"	"Aug"	"Sep"	"Oct"	"Nov"	"Dec"
171175	1970	-11.9	 -7.6	 -3.7	  3.4	 10.3	 16.5	 20.9	 18.9	 12.2	  8.5	  1.5	 -9.6
171175	1971	 -9.2	 -7.1	 -3.7	  2.3	 10.9	 15.2	 17.8	 16.3	 13.4	  8.0	 -2.3	 -8.4
171175	1972	 -8.0	 -9.0	 -6.4	  1.5	 11.3	 16.4	 18.2	 15.8	 12.3	  3.5	 -2.7	-10.3
171175	1973	 -8.6	 -7.2	 -1.2	  3.3	  9.4	 17.2	 20.3	 19.1	 11.6	  6.6	 -2.5	 -4.2
171175	1974	 -8.6	 -9.5	 -5.8	  2.7	  7.3	 17.1	 18.2	 17.9	 11.5	  4.0	 -0.3	 -7.1
171175	1975	 -8.6	 -6.7	 -4.4	  1.7	 12.0	 16.3	 20.3	 18.0	 12.5	  5.7	  0.4	 -9.1
171175	1976	 -9.1	 -8.0	 -4.2	  3.5	 10.7	 17.8	 17.6	 17.0	 10.8	  4.0	 -3.6	-10.3
171175	1977	-10.6	 -9.1	  0.2	  2.4	 11.8	 14.9	 18.4	 17.9	 10.6	  6.4	  0.7	 -7.5
171175	1978	-10.8	 -9.6	 -6.2	  1.6	 12.9	 16.0	 19.0	 18.3	 10.2	  5.3	 -2.4	 -8.0
171175	1979	 -6.4	 -9.5	    	  5.1	 12.5	 17.2	 20.6	 16.6	 12.4	  7.3	  2.1	 -6.1
171175	1980	 -9.6	-10.2	 -4.1	  5.9	 10.7	 15.2	 18.2	 18.9	 10.4	  4.9	 -1.1	 -8.8
171175	1981	-10.4	 -2.0	 -2.2	  4.2	 12.3	 16.2	 19.0	 18.1	 11.7	  4.6	 -0.1	 -4.8
171175	1982	-10.5	-10.0	 -3.6	  1.7	 12.0	 15.7	 19.1	 14.8	 12.7	  6.9	  0.4	 -4.9
171175	1983	 -8.2	 -8.6	 -2.7	  5.0	  9.4	 16.6	 18.0	 17.9	 14.0	  6.4	  0.1	 -8.1
171175	1984	 -9.7	 -4.1	 -5.6	  4.3	  9.5	 15.1	 18.8	 18.6	 10.9	  6.9	  0.8	 -6.5
171175	1985	-12.0	 -6.8	 -4.2	  1.8	  9.7	 14.6	 18.9	 16.8	 13.4	  6.6	 -2.1	 -9.5
171175	1986	 -8.0	 -9.9	 -3.8	  6.0	 11.2	 13.8	 17.0	 15.9	 10.3	  5.1	 -3.3	 -7.5
171175	1987	 -9.5	 -9.5	 -1.6	  6.6	 10.3	 15.7	 18.8	 16.2	 12.5	  6.7	 -1.6	 -6.7
171175	1988	 -8.1	 -8.1	 -4.5	  4.1	 12.6	 14.7	 19.7	 18.0	 11.3	  4.7	  0.8	 -8.3
171175	1989	 -7.8	 -9.4	 -5.2	  2.6	 13.7	 15.6	 18.2	 17.5	 13.0	  7.2	 -2.3	-11.6
171175	1990	 -7.0	 -8.1	 -3.6	  4.2	  9.4	 17.2	 19.0	 19.2	 11.9	  7.0	 -0.6	 -5.8
171175	1991	-10.2	 -6.8	 -2.8	  4.2	 11.4	 16.3	 18.8	 18.5	 11.2	  7.1	  0.4	 -8.5
171175	1992	 -8.8	 -9.8	 -5.6	  2.4	 11.8	 15.7	 15.7	 17.6	 13.4	  5.1	 -1.5	 -6.3
171175	1993	 -9.6	-11.0	 -4.3	  4.4	 10.6	 15.5	 18.2	 18.7	 12.2	  4.0	 -1.3	 -4.8