"station_id"	"year"	"Jan"	"Feb"	"Mar"	"Apr"	"May"	"Jun"	"Jul"	"Aug"	"Sep"	"Oct"	"Nov"	"Dec"
270741	1970	  145	  185	  572	   81	    	    	    	    	    	    	    	  904
270741	1971	  467	  546	  760	  180	    	    	    	    	    	    	  584	  506
270741	1972	  277	  737	  424	  211	    	    	    	    	    	    	  406	  917
270741	1973	  541	  117	    	  267	    	    	    	    	    	    	    	   61
270741	1974	  475	  170	  173	  216	    	    	    	    	    	    	   25	  419
270741	1975	  564	  437	  190	  127	    	    	    	    	    	    	  152	  569
270741	1976	  412	  297	  630	    	    	    	    	    	    	    	   89	  279
270741	1977	  846	  290	  533	   25	    	    	    	    	    	    	   25	  668
270741	1978	  831	  368	  279	   74	    	    	    	    	    	    	  229	  660
270741	1979	  980	  165	   33	  170	    	    	    	    	    	   25	    	   56
270741	1980	   79	  292	  343	    	    	    	    	    	    	    	  254	  295
270741	1981	  208	  409	   91	    	    	    	    	    	    	    	    	  925
270741	1982	  795	  282	  140	  493	    	    	    	    	    	    	   76	   84
270741	1983	  318	  444	  246	    	    	    	    	    	    	    	   25	  432
270741	1984	  417	  203	  673	    	    	    	    	    	    	    	    	  572
270741	1985	  196	  279	  330	  102	    	    	    	    	    	    	  180	  310
270741	1986	  490	  381	  150	    	    	    	    	    	    	    	  284	  396
270741	1987	 1031	   25	  216	  305	    	    	    	    	    	    	  147	  338
270741	1988	  577	  610	  107	    	    	    	    	    	    	    	   13	  152
270741	1989	  165	  239	  300	   13	    	    	    	    	    	    	   76	  353
270741	1990	  724	  610	   38	    	    	    	    	    	    	    	    	  254
270741	1991	  267	  267	  127	    	    	    	    	    	    	    	    	    
270741	1992	    	    	    	    	    	    	    	    	    	    	    	    
270741	1993