"station_id"	"year"	"Jan"	"Feb"	"Mar"	"Apr"	"May"	"Jun"	"Jul"	"Aug"	"Sep"	"Oct"	"Nov"	"Dec"
275712	1970	 -8.0	 -3.7	 -0.2	  7.4	 14.8	 18.0	 21.6	 20.7	 16.2	 11.2	  4.8	 -5.3
275712	1971	 -6.6	 -2.5	  0.1	  6.2	 12.6	 18.7	 20.6	 19.6	 17.5	 12.7	  2.3	 -2.2
275712	1972	 -3.8	 -4.4	 -0.7	  4.6	 13.1	 17.2	 20.9	 19.1	 15.7	  7.7	  2.1	 -2.4
275712	1973	 -3.3	 -3.6	  3.5	  8.5	 12.4	 19.2	 21.5	 21.8	 14.7	  9.5	  3.4	    
275712	1974	 -2.8	 -3.8	  1.3	  9.0	 11.4	 17.6	 20.9	 20.1	 14.9	  6.4	  3.5	 -1.2
275712	1975	 -2.6	 -3.2	  0.2	  5.3	 15.9	 18.3	 22.4	 19.6	 13.9	  9.9	  6.4	 -3.1
275712	1976	 -6.9	 -1.6	  1.6	  9.1	 13.3	 21.1	 20.1	 19.3	 14.5	  7.9	  1.3	 -6.1
275712	1977	 -8.1	 -4.0	  4.1	  8.3	 14.8	 17.2	 20.5	 20.0	 14.9	  8.9	  4.5	 -3.5
275712	1978	 -5.5	 -6.6	 -0.6	  6.3	 14.1	 18.3	 20.2	 20.3	    	  8.7	  3.1	 -2.0
275712	1979	 -3.1	 -6.4	  3.8	  7.3	 14.5	 18.6	 22.0	 19.6	    	  9.1	  6.4	 -0.5
275712	1980	 -4.0	 -5.4	  0.8	  7.0	 13.2	 16.5	 21.5	 20.9	 16.3	  8.4	  2.8	 -4.6
275712	1981	 -7.3	  0.4	  2.2	  9.0	 14.6	 18.6	 20.8	 19.4	 15.0	  7.6	  3.6	 -2.1
275712	1982	 -7.4	 -3.7	  0.6	  6.1	 13.9	 15.4	 19.8	 18.3	 15.8	  9.0	  5.6	  0.5
275712	1983	 -4.0	 -2.4	  2.3	  7.4	 12.2	 18.6	 21.4	 21.5	 18.0	  9.8	  5.3	 -2.7
275712	1984	 -5.1	  0.6	 -0.8	  7.6	 12.7	 20.0	 21.3	 22.3	 15.2	 11.3	  4.5	  0.3
275712	1985	 -7.3	 -1.6	  2.9	  7.9	 14.1	 17.0	 21.7	 20.1	 16.4	 10.4	  4.7	 -4.1
275712	1986	 -3.3	 -4.5	  3.1	  9.1	 14.3	 17.0	 20.3	 19.5	 14.8	  9.7	  2.5	 -0.7
275712	1987	 -4.8	 -3.6	  2.2	  7.9	 14.1	 18.8	 22.2	 19.5	 15.9	  9.0	  3.8	 -0.6
275712	1988	 -4.7	 -2.8	  2.2	  7.4	 14.3	 18.3	 23.0	 22.4	 15.2	  8.0	  5.0	 -3.1
275712	1989	 -1.8	 -3.9	  1.0	  6.2	 15.3	 18.8	 21.2	 20.5	 16.5	 10.2	  3.4	 -8.6
275712	1990	 -0.8	 -2.2	  2.7	  7.9	 11.8	 18.8	 22.1	 21.5	 16.2	 12.0	  6.0	  1.2
275712	1991	 -4.5	 -0.9	  3.4	  9.4	 16.6	 19.1	 21.4	 21.6	 15.1	 11.4	  5.1	 -1.7
275712	1992	 -3.2	 -2.5	  0.1	  6.6	 13.1	 18.3	 19.6	 19.9	 16.2	  8.3	  3.2	 -1.9
275712	1993	 -3.5	 -6.6	 -0.1	  8.1	 14.7	 18.8	 22.1	 21.6	 16.1	  8.1	  3.6	 -1.7