"station_id"	"year"	"Jan"	"Feb"	"Mar"	"Apr"	"May"	"Jun"	"Jul"	"Aug"	"Sep"	"Oct"	"Nov"	"Dec"
273415	1970	    	    	    	    	    	    	    	    	    	    	    	    
273415	1971	    	    	    	    	    	    	    	    	    	    	    	    
273415	1972	    	    	    	    	    	    	    	    	    	    	    	    
273415	1973	    	    	    	    	    	    	    	    	    	    	    	    
273415	1974	    	    	    	    	    	    	    	    	    	    	    	    
273415	1975	    	    	    	    	    	    	    	    	    	    	    	    
273415	1976	    	    	    	    	    	    	    	    	    	    	    	    
273415	1977	    	    	    	    	    	    	    	    	    	    	    	    
273415	1978	    	    	    	    	   43	  169	   42	   87	   31	   70	   25	   59
273415	1979	  160	   38	   64	   51	  100	   32	   59	  112	   97	   85	   68	   39
273415	1980	   36	   20	   95	   71	   35	   86	   94	   49	  121	   96	   66	   36
273415	1981	    9	  166	   23	   90	   87	  109	  140	  109	  164	    	   55	   78
273415	1982	   65	   65	   58	   88	   23	  132	   53	   53	   60	   35	  111	   42
273415	1983	   92	   46	  149	  148	  157	    	    	   87	   53	   62	  250	  130
273415	1984	   30	  146	   64	   44	  211	  138	  131	   18	   46	   88	   94	   63
273415	1985	   40	   77	   69	   34	   89	   72	   48	   99	  136	  107	   88	   57
273415	1986	  129	   31	   89	   28	   83	   75	  108	  144	   82	   48	   78	   55
273415	1987	   67	    2	   41	  112	   38	  181	   76	  105	  133	  126	   59	   46
273415	1988	   40	   59	   31	  131	   82	   48	  124	  149	   37	   45	  141	   30
273415	1989	   25	   37	   53	   68	  119	  154	   68	  105	   95	  128	  112	   30
273415	1990	   89	   51	   40	   71	  104	  137	   63	  260	   70	  169	   79	  116
273415	1991	   47	   27	   69	   80	   80	   60	   60	  186	  101	  144	   65	   81
273415	1992	   56	   62	  115	   44	   26	   63	   78	  114	  120	   52	   94	   44
273415	1993	   47	   59	   54	   57	   21	   73	  137	  146	  103	   66	   71	   91