"station_id"	"year"	"Jan"	"Feb"	"Mar"	"Apr"	"May"	"Jun"	"Jul"	"Aug"	"Sep"	"Oct"	"Nov"	"Dec"
174324	1970	    	    	    	    	    	    	    	    	    	    	    	    
174324	1971	    	    	    	    	    	    	    	    	    	    	    	    
174324	1972	    	    	    	    	    	    	    	    	    	    	    	    
174324	1973	    	    	    	    	    	    	    	    	    	    	    	    
174324	1974	    	    	    	    	    	    	    	    	    	    	    	    
174324	1975	    	    	    	    	    	    	    	    	    	    	    	    
174324	1976	    	    	    	    	    	    	    	    	    	    	    	    
174324	1977	    	    	    	    	    	    	    	    	    	    	    	    
174324	1978	    	    	    	    	    	    	    	    	    	    	  376	  574
174324	1979	 1174	  180	  114	  312	    	    	    	    	    	  102	    	  196
174324	1980	   99	  310	  406	   76	    	    	    	    	    	    	  292	  366
174324	1981	  264	  168	   71	    	    	    	    	    	    	    	   74	  744
174324	1982	  655	  401	  419	  391	    	    	    	    	    	    	  254	  168
174324	1983	  333	  455	  175	  152	    	    	    	    	    	    	  145	  318
174324	1984	  404	  363	  658	    	    	    	    	    	    	    	    	  792
174324	1985	  264	  201	  343	  361	    	    	    	    	    	    	  231	  432
174324	1986	  744	  279	  302	  122	    	    	    	    	    	    	  307	  277
174324	1987	  973	  135	  310	  190	    	    	    	    	    	    	  417	  472
174324	1988	  485	  599	   94	  180	    	    	    	    	    	    	    	    
174324	1989	    	    	  516	   20	    	    	    	    	    	   25	  470	  686
174324	1990	  879	  465	  190	    	    	    	    	    	    	    	   76	    
174324	1991	    	    	    	    	    	    	    	    	    	    	   38	  495
174324	1992	  127	  696	   25	  241	    	    	    	    	    	    	   64	  152
174324	1993	  287	 1118	 1016	  381	    	    	    	    	    	    	   64	  224