"station_id"	"year"	"Jan"	"Feb"	"Mar"	"Apr"	"May"	"Jun"	"Jul"	"Aug"	"Sep"	"Oct"	"Nov"	"Dec"
271001	1970	    	    	    	    	    	    	    	    	    	    	    	    
271001	1971	    	    	    	    	    	    	    	    	    	    	    	    
271001	1972	    	    	    	    	    	    	    	    	    	    	    	    
271001	1973	    	    	    	    	    	    	    	    	    	    	    	    
271001	1974	    	    	    	    	    	    	    	    	    	    	    	    
271001	1975	    	    	    	    	    	    	    	    	    	    	    	    
271001	1976	    	    	    	    	    	    	    	    	    	    	    	    
271001	1977	    	    	    	    	    	    	    	    	    	    	    	    
271001	1978	    	    	    	    	    	    	    	    	    	    	    	    
271001	1979	    	    	    	    	    	    	    	    	    	    	    	    
271001	1980	    	    	    	    	    	    	    	    	    	    	    	    
271001	1981	    	    	    	    	    	    	    	    	    	    	    	    
271001	1982	    	    	    	    	    	    	    	    	    	    	    	    
271001	1983	    	    	    	    	    	   42	   44	  115	   51	   96	  246	  170
271001	1984	   50	  149	   78	  102	  254	  117	  119	   45	   50	   98	   81	   76
271001	1985	   33	   74	   82	   37	   68	   86	   52	   99	  107	   92	  154	   55
271001	1986	  175	   66	  105	   48	   63	  112	  150	   53	   85	   49	    	   99
271001	1987	   91	    3	   47	  143	   43	  232	   63	   94	  118	  100	   61	   63
271001	1988	   46	   81	   29	  118	   87	   22	  149	  120	   48	   27	  137	   31
271001	1989	   24	   36	   39	   82	  167	  153	   48	  115	   95	  181	  118	   46
271001	1990	  144	   77	   41	   79	  158	  133	   58	  366	   76	  151	   83	  142
271001	1991	   49	    	    	    	    	    	    	    	    	    	    	    
271001	1992	    	    	    	    	    	    	    	    	    	    	    	    
271001	1993