"station_id"	"year"	"Jan"	"Feb"	"Mar"	"Apr"	"May"	"Jun"	"Jul"	"Aug"	"Sep"	"Oct"	"Nov"	"Dec"
179151	1970	 -8.7	 -4.6	  0.3	  6.2	 14.1	 18.1	 21.8	 21.0	 15.8	 10.9	  3.8	 -7.2
179151	1971	 -7.3	 -3.8	 -0.3	  5.8	 13.1	 19.0	 20.9	 19.3	 17.0	 12.4	  1.7	 -4.7
179151	1972	 -5.0	 -6.4	 -2.3	  4.3	 13.6	 17.7	 21.2	 19.0	 15.8	  7.5	  0.8	 -5.9
179151	1973	 -4.4	 -4.2	  2.6	  7.3	 11.7	 18.5	 21.8	 22.3	 14.8	  9.6	  2.5	 -0.2
179151	1974	 -4.7	 -5.0	    	  7.1	 10.4	 18.2	 20.3	 20.0	 15.3	  7.0	  3.4	 -1.6
179151	1975	 -4.3	 -4.0	 -0.5	  5.0	 15.4	 18.5	 22.1	 20.3	 14.4	 10.3	  5.3	 -4.3
179151	1976	 -6.8	 -3.1	  0.2	  8.1	 13.0	 20.1	 19.8	 19.5	 15.1	  7.6	  1.6	 -7.2
179151	1977	 -8.3	 -5.0	  4.1	  6.9	 15.0	 17.0	 20.7	 20.0	 14.9	  9.6	  4.7	 -4.2
179151	1978	 -7.1	 -5.8	 -0.8	  5.8	 14.7	 18.2	 21.1	 20.8	 13.8	  9.5	  2.0	 -4.3
179151	1979	 -4.5	 -6.0	  2.7	  6.4	 13.9	 18.4	 22.0	 19.4	 15.3	  9.0	  5.0	 -2.8
179151	1980	 -5.7	 -6.0	 -0.9	  6.4	 13.1	 16.5	 20.6	 20.7	 14.3	  6.6	  1.2	 -5.8
179151	1981	 -7.3	 -0.3	  1.2	  6.8	 14.0	 17.8	 20.5	 18.9	 14.3	  7.5	  2.5	 -2.6
179151	1982	 -7.6	 -5.0	 -0.1	  4.7	 13.1	 16.2	 20.7	 18.4	 15.7	  9.3	  4.5	 -0.9
179151	1983	 -4.5	 -3.2	  1.8	  7.2	 12.3	 18.8	 21.5	 20.9	 17.4	  9.1	  3.4	 -4.3
179151	1984	 -7.4	 -0.3	 -2.7	  6.9	 12.0	 18.3	 21.1	 21.0	 14.1	 10.1	  3.5	 -2.5
179151	1985	 -8.4	 -3.2	  0.6	  6.7	 12.8	 16.3	 21.3	 19.4	 16.3	 10.0	  2.9	 -4.9
179151	1986	 -3.7	 -4.9	  1.0	  8.8	 12.8	 16.9	 19.6	 18.7	 13.9	  8.5	  1.0	 -2.9
179151	1987	 -5.8	 -5.3	  1.3	  8.9	 13.1	 18.2	 20.8	 19.2	 15.1	  9.8	  3.0	 -2.0
179151	1988	 -4.8	 -3.8	  0.7	  6.5	 14.3	 17.5	 22.6	 21.5	 15.3	  7.7	  4.8	 -4.0
179151	1989	 -4.7	 -5.0	 -0.8	  5.3	 14.6	 18.6	 21.1	 20.0	 16.1	  9.8	  2.0	 -8.8
179151	1990	 -2.0	 -3.2	  0.9	  6.9	 11.9	 17.9	 21.2	 21.4	 15.4	 11.0	  4.6	    
179151	1991	 -5.4	 -2.2	  1.9	  8.1	 14.4	 18.7	 20.4	 21.1	 14.5	 11.3	  4.4	 -4.2
179151	1992	 -5.9	 -3.9	 -0.8	  5.0	 13.1	 18.4	 18.9	 19.8	 15.5	  8.4	  2.0	 -2.8
179151	1993	 -4.5	 -7.4	 -0.7	  6.8	 12.8	 17.2	 20.5	 20.7	 14.8	  6.5	  2.5	 -2.7