"station_id"	"year"	"Jan"	"Feb"	"Mar"	"Apr"	"May"	"Jun"	"Jul"	"Aug"	"Sep"	"Oct"	"Nov"	"Dec"
193821	1970	    	    	    	    	    	    	    	    	    	    	    	    
193821	1971	    	    	    	    	    	    	    	    	    	    	    	    
193821	1972	    	    	    	   38	    	    	    	    	    	    	    	    
193821	1973	   25	  292	   51	    	    	    	    	    	    	    	    	    
193821	1974	    	  234	    	    	    	    	    	    	    	    	   25	    
193821	1975	   28	  444	   76	   38	    	    	    	    	    	    	    	   51
193821	1976	  516	  114	  165	    	    	    	    	    	    	    	    	   13
193821	1977	  323	  178	   53	    	    	    	    	    	    	    	    	    
193821	1978	  412	  356	  142	    	    	    	    	    	    	    	   28	    
193821	1979	  119	  163	    	    	    	    	    	    	    	    	    	    
193821	1980	   56	   74	    	    	    	    	    	    	    	    	    	    
193821	1981	  475	    	    	    	    	    	    	    	    	    	    	  221
193821	1982	  559	  196	    	  102	    	    	    	    	    	    	    	  305
193821	1983	    	  483	    	    	    	    	    	    	    	    	    	  229
193821	1984	   76	    	  203	    	    	    	    	    	    	    	    	    
193821	1985	  267	  152	    	    	    	    	    	    	    	    	    	    
193821	1986	    	  229	   25	    	    	    	    	    	    	    	    	   25
193821	1987	    	   46	    	    	    	    	    	    	    	    	   38	  165
193821	1988	  206	    	   38	    	    	    	    	    	    	    	    	    2
193821	1989	    	  147	   64	    	    	    	    	    	    	    	    	  241
193821	1990	   13	    	   38	   10	    	    	    	    	    	    	    	    
193821	1991	  229	   33	    	    	    	    	    	    	    	    	    	    
193821	1992	   89	  183	  190	    	    	    	    	    	    	    	    	    
193821	1993	    5	  218