"station_id"	"year"	"Jan"	"Feb"	"Mar"	"Apr"	"May"	"Jun"	"Jul"	"Aug"	"Sep"	"Oct"	"Nov"	"Dec"
173046	1970	 -8.8	 -4.7	 -0.7	  5.5	 13.2	 17.3	 21.1	 20.2	 15.2	 10.7	  3.8	 -7.3
173046	1971	 -6.9	 -3.9	 -1.5	  5.1	 12.5	 17.9	 20.2	 19.6	 16.8	 12.0	  1.5	 -4.1
173046	1972	 -4.8	 -5.8	 -1.7	  4.6	 13.3	 16.8	    	    	    	  7.8	  1.8	 -5.3
173046	1973	 -3.2	 -4.6	  2.3	    	 11.2	 17.8	    	 21.4	    	    	    	    
173046	1974	 -3.0	 -5.2	 -0.2	    	 10.1	 17.2	 20.0	 20.0	    	  6.8	  2.9	    
173046	1975	 -3.8	 -3.4	 -1.3	  4.5	 14.1	 17.6	 21.4	 20.2	 13.9	  9.6	  4.3	 -4.5
173046	1976	 -6.7	 -3.0	 -0.4	  7.4	 12.4	 19.7	 19.5	 19.0	 14.7	  7.4	  1.1	 -7.3
173046	1977	 -8.6	 -5.8	  3.0	  6.2	 14.0	 16.3	 20.6	 19.6	 14.2	  8.8	  4.8	 -4.5
173046	1978	 -7.5	 -6.6	 -1.8	  4.8	 13.9	 17.3	 20.4	 20.0	 13.5	  8.8	  2.0	 -4.8
173046	1979	 -4.7	 -6.9	  1.2	    	 13.7	 17.8	 21.3	 18.6	 15.3	  9.2	  5.5	 -2.1
173046	1980	 -6.1	 -7.8	 -0.8	  6.6	 12.8	 16.2	 20.6	 20.8	 14.5	  6.7	  1.0	 -5.8
173046	1981	 -7.4	 -0.6	  1.0	  7.1	 13.8	 17.9	 20.7	 19.1	 14.3	  7.6	  2.5	 -2.9
173046	1982	 -8.4	 -5.8	 -0.7	  4.5	 12.6	 15.1	 19.7	 17.4	 14.2	  8.1	  4.4	 -1.2
173046	1983	 -5.0	    	  1.7	  6.8	 11.4	 18.9	 19.4	 19.6	 16.1	  7.2	  3.4	 -4.7
173046	1984	 -7.4	 -1.2	 -4.0	  6.0	 11.2	 17.1	 20.6	 20.5	 13.7	  9.3	  3.8	 -2.0
173046	1985	 -9.3	 -4.3	 -0.6	  5.8	 12.4	 14.9	 20.6	 19.0	 15.6	  9.5	  3.3	 -5.1
173046	1986	 -5.2	 -7.1	 -0.1	  8.2	 12.5	 15.4	 19.3	 18.3	 12.9	  8.2	  0.7	 -3.5
173046	1987	 -7.3	 -6.7	  0.4	  7.6	 11.8	 17.4	 19.6	 18.4	 14.6	  8.2	  1.8	 -2.8
173046	1988	 -6.2	 -4.9	 -0.9	  6.4	 12.9	 17.6	 21.9	 21.2	 14.1	  7.2	  4.0	 -5.5
173046	1989	 -5.7	 -6.8	 -2.0	  4.5	 13.8	 17.8	 20.6	 19.5	 15.3	  9.0	  1.7	-10.2
173046	1990	 -3.3	 -5.3	 -0.1	  6.3	 11.1	 17.3	 20.9	 21.1	 15.0	 10.5	  3.9	 -0.8
173046	1991	 -7.1	 -4.0	  1.1	  7.2	 14.2	 18.2	 20.9	 20.7	 14.5	 10.1	  3.9	 -5.2
173046	1992	 -6.7	 -4.7	 -1.9	  4.3	 12.2	 17.4	 18.6	 19.2	 15.3	  7.3	  1.6	 -2.6
173046	1993	 -5.9	 -8.6	 -2.5	  6.1	 13.0	 16.6	 20.2	 20.4	 15.1	  6.8	  2.8	 -1.9