"station_id" "year" "Jan" "Feb" "Mar" "Apr" "May" "Jun" "Jul" "Aug" "Sep" "Oct" "Nov" "Dec" 272800 1970 135 254 102 937 272800 1971 417 462 559 310 318 457 272800 1972 229 688 531 104 175 305 272800 1973 269 216 23 272800 1974 64 152 76 356 272800 1975 444 381 152 102 879 272800 1976 406 140 584 64 406 272800 1977 940 211 444 13 25 572 272800 1978 826 483 216 152 229 272800 1979 698 190 76 25 51 272800 1980 51 203 203 203 272800 1981 229 241 51 693 272800 1982 508 185 89 508 25 64 272800 1983 444 572 51 152 272800 1984 617 76 757 279 272800 1985 109 165 211 25 127 64 272800 1986 152 300 51 305 272800 1987 1245 89 152 102 229 272800 1988 203 533 127 51 272800 1989 76 178 140 13 102 203 272800 1990 584 597 38 127 272800 1991 394 76 51 295 272800 1992 51 51 76 89 330 272800 1993 356 889 1422 25 216