"station_id"	"year"	"Jan"	"Feb"	"Mar"	"Apr"	"May"	"Jun"	"Jul"	"Aug"	"Sep"	"Oct"	"Nov"	"Dec"
271683	1970	 -9.3	 -5.1	 -0.7	  7.6	 14.1	 17.3	 21.6	 20.4	 15.9	 10.6	  4.1	 -6.0
271683	1971	 -7.1	 -3.0	 -0.9	  5.6	 12.3	 18.6	 20.2	 19.4	 16.2	 11.1	  0.2	 -2.6
271683	1972	 -4.5	 -5.3	 -1.9	  4.5	 13.8	 17.1	 20.7	 17.8	 14.1	  5.7	 -0.5	 -4.7
271683	1973	 -4.5	 -5.7	  1.9	  7.2	 11.6	 19.4	 21.3	 22.4	 14.9	  9.0	  2.3	 -1.7
271683	1974	 -4.3	 -5.5	 -0.2	  7.6	 10.6	 17.1	 19.7	 19.4	 15.0	  5.8	  2.2	 -2.8
271683	1975	 -4.4	 -4.2	 -1.0	  4.7	 16.3	 18.3	 22.7	 19.2	 13.4	  8.7	  4.4	 -4.6
271683	1976	 -7.9	 -3.7	 -0.1	  8.1	 12.0	 20.5	 19.3	 18.5	 14.0	  7.2	 -0.2	 -7.5
271683	1977	 -9.3	 -5.6	  2.6	  7.3	 14.6	 17.1	 20.5	 20.0	 14.7	  8.3	  4.1	 -5.2
271683	1978	 -7.3	 -8.0	 -2.0	  4.8	 14.2	 18.4	 20.9	 20.9	 13.2	  8.2	  1.8	 -5.0
271683	1979	 -4.4	 -7.5	  3.1	  6.8	 13.5	 17.7	 21.8	 19.7	 15.4	  8.5	  5.7	 -1.2
271683	1980	 -5.3	 -6.7	  0.2	  6.9	 13.1	 17.1	 21.4	 20.2	 14.6	  7.2	  1.6	 -5.0
271683	1981	 -8.2	 -0.6	  1.2	  8.4	 14.1	 18.9	 21.0	 19.2	 14.9	  7.3	  3.2	 -3.3
271683	1982	 -8.0	 -5.5	 -0.6	  5.3	 14.0	 16.0	 20.8	 18.6	 15.6	  8.6	  5.4	  0.3
271683	1983	 -4.7	 -2.7	  2.2	  7.3	 11.7	 18.4	 21.2	 20.7	 16.8	  9.0	  4.1	 -3.7
271683	1984	 -6.3	 -0.3	 -2.1	  7.0	 11.6	 18.8	 20.4	 20.7	 14.3	 10.2	  3.5	 -1.0
271683	1985	 -8.6	 -2.7	  2.1	  7.3	 13.4	 16.8	 21.3	 19.2	 15.8	  9.5	  3.6	 -5.0
271683	1986	 -4.5	 -5.8	  1.9	  9.0	 14.2	 16.3	 19.6	 18.9	 14.0	  8.5	  1.2	 -1.7
271683	1987	 -5.5	 -5.0	  1.4	  8.3	 13.7	 18.0	 21.4	 18.4	 14.8	  7.6	  2.7	 -2.1
271683	1988	 -5.5	 -4.1	  0.8	  6.6	 14.0	 17.2	 22.6	 21.4	 14.3	  7.2	  3.9	 -4.5
271683	1989	 -3.4	 -5.1	 -0.1	  5.2	 14.6	 18.3	 20.8	 19.8	 16.0	  9.5	  2.2	 -9.9
271683	1990	 -1.9	 -3.8	  1.6	  7.6	 11.6	 18.5	 21.6	 21.0	 15.4	 11.0	  4.5	 -0.6
271683	1991	 -5.7	 -2.1	  2.2	  8.6	 15.7	 18.6	 20.7	 21.0	 14.3	 10.4	  4.2	 -3.5
271683	1992	 -4.4	 -3.2	 -1.0	  5.8	 12.7	 17.8	 18.9	 19.5	 15.4	  7.2	  2.0	 -3.1
271683	1993	 -4.4	 -6.9	 -0.7	  7.6	 13.8	 18.3	 21.9	 21.1	 14.9	  7.4	  2.4	 -2.4