"station_id"	"year"	"Jan"	"Feb"	"Mar"	"Apr"	"May"	"Jun"	"Jul"	"Aug"	"Sep"	"Oct"	"Nov"	"Dec"
176900	1970	    	    	    	    	    	    	    	    	    	    	    	    
176900	1971	    	    	    	    	    	    	    	    	    	    	    	    
176900	1972	    	    	    	    	    	    	    	    	    	    	    	    
176900	1973	    	    	    	    	    	    	    	    	    	    	    	    
176900	1974	    	    	    	    	    	    	    	    	    	    	    	    
176900	1975	    	    	    	    	    	    	    	    	    	    	    	    
176900	1976	    	    	    	    	    	    	    	    	    	    	    	    
176900	1977	    	    	    	    	    	    	    	    	    	    	    	    
176900	1978	    	    	    	    	    	    	    	    	    	    	    	    
176900	1979	    	    	    	    	    	    	    	    	    	    	    	    
176900	1980	    	    	    	    	    	    	    	    	    	    	    	    
176900	1981	    	    	    	    	    	    	    	    	    	    	    	    
176900	1982	    	    	    	    	    	    	    	    	    	    	    	    
176900	1983	    	    	    	    	    	    	    	    	    	    	    	    
176900	1984	    	    	    	    	    	    	    	    	    	    	    	    
176900	1985	    	    	    	    	    	    	    	    	    	    	    	    
176900	1986	    	    	    	    	    	    	    	    	    	    	    	    
176900	1987	    	    	    	    	    	    	    	    	    	    	    	    
176900	1988	    	    	    	    	    	    	    	    	    	    	    	    
176900	1989	    	    	    	    	    	    	    	    	    	    	    	    
176900	1990	    	    	    	    	    	    	    	    	    	    	    	    
176900	1991	    	    	    	    	    	    	    	    	    	    	    	    
176900	1992	    	    	    	    	    	    	    	    	    	    	    	    
176900	1993