"station_id"	"year"	"Jan"	"Feb"	"Mar"	"Apr"	"May"	"Jun"	"Jul"	"Aug"	"Sep"	"Oct"	"Nov"	"Dec"
172620	1970	 -9.0	 -4.7	 -0.7	  5.3	 12.2	 16.2	 20.2	 19.8	 14.6	 10.4	  3.9	 -7.2
172620	1971	 -7.2	 -4.2	 -0.5	  5.1	 12.2	 16.7	 19.6	 19.6	 16.3	 11.5	  2.1	 -4.2
172620	1972	 -4.3	 -5.8	 -2.0	  3.6	 11.3	 15.4	 19.2	 18.7	 15.4	  7.8	  1.4	 -4.9
172620	1973	 -4.5	 -4.8	  2.0	  6.3	 10.0	 17.0	 20.6	 20.8	 14.8	  8.9	  3.0	  1.0
172620	1974	 -5.0	 -5.7	  0.2	  6.1	  9.7	 16.3	 19.3	 20.3	 14.4	  6.6	  3.8	 -1.7
172620	1975	 -4.2	 -5.0	 -0.5	  4.6	 12.8	 16.9	 20.5	 20.1	 14.2	  9.8	  5.6	 -3.5
172620	1976	 -6.3	 -2.7	 -0.1	  7.0	 11.7	 18.5	 19.5	 19.9	 15.2	    	  1.4	 -6.3
172620	1977	 -8.1	 -5.5	  2.5	    	 12.8	 15.4	 20.0	 18.9	    	  9.5	  4.7	 -3.2
172620	1978	 -6.4	 -6.4	 -1.4	  5.2	    	 16.3	 19.9	 20.0	 13.3	  8.6	  2.1	 -3.4
172620	1979	 -3.7	 -6.5	  2.5	  6.1	 12.8	 16.9	 20.4	 18.7	    	  9.7	  6.1	 -1.6
172620	1980	 -4.7	 -6.2	 -0.5	  6.7	 12.2	 15.8	 19.9	 20.2	 14.3	    	  2.2	 -5.0
172620	1981	 -7.9	 -0.3	  1.5	  6.8	 12.9	 16.9	 20.3	 19.1	    	  8.5	  3.7	 -1.2
172620	1982	 -8.1	 -5.6	    	  4.7	 11.9	 15.3	 20.3	    	    	  9.4	  5.0	 -0.8
172620	1983	    	    	    	    	 10.9	    	    	 19.9	    	    	  5.2	 -2.3
172620	1984	 -6.1	 -0.3	 -2.4	  6.3	 11.2	 16.4	 20.3	    	    	  9.6	    	    
172620	1985	 -9.0	 -2.6	  0.4	  6.0	 10.7	 15.7	 19.7	 19.0	 15.5	  9.9	  3.5	 -5.5
172620	1986	 -4.1	 -5.7	 -0.1	  7.8	 11.6	 15.7	 18.7	 17.9	 14.0	  8.4	  1.7	 -2.8
172620	1987	 -6.0	 -5.5	  0.2	  7.4	 12.6	 16.8	 19.1	 19.2	 14.7	  9.5	  2.3	 -2.4
172620	1988	 -4.5	 -3.9	  0.1	  6.0	 12.6	 17.1	 20.7	 20.5	 14.3	  7.6	  4.4	 -4.2
172620	1989	 -3.5	 -5.4	 -1.3	  4.5	 12.8	 17.2	 19.4	 18.2	 14.8	  9.1	  2.2	-10.0
172620	1990	 -2.4	 -4.8	 -0.1	  6.4	 10.8	 16.4	 20.7	 20.7	 14.7	 10.7	  3.9	 -0.1
172620	1991	 -6.0	 -2.8	  1.6	  6.4	 13.5	 18.0	 20.0	 20.6	 14.3	 10.3	  4.5	 -5.1
172620	1992	 -5.8	 -4.6	 -1.7	  4.0	 11.5	 16.8	 17.9	 18.9	 14.5	  7.6	  1.8	 -2.6
172620	1993	 -5.6	 -8.1	 -1.1	  5.7	 12.3	 16.8	 20.3	 19.9	 15.1	  7.5	  3.3	 -1.5