"station_id" "year" "Jan" "Feb" "Mar" "Apr" "May" "Jun" "Jul" "Aug" "Sep" "Oct" "Nov" "Dec" 175261 1970 15 62 34 41 78 85 97 157 69 82 38 70 175261 1971 32 56 89 30 78 62 62 128 52 78 70 52 175261 1972 27 58 76 61 68 94 119 78 21 57 93 105 175261 1973 56 30 42 77 117 231 72 83 91 94 71 160 175261 1974 63 40 44 117 129 43 125 84 104 36 93 77 175261 1975 42 37 66 36 70 66 138 46 128 101 86 71 175261 1976 88 54 63 48 113 102 144 138 87 125 30 46 175261 1977 66 53 72 32 142 40 169 119 104 70 92 175261 1978 144 32 42 71 38 167 66 58 29 59 33 56 175261 1979 170 32 57 35 90 44 102 91 71 102 57 53 175261 1980 20 18 67 52 41 45 98 80 114 114 92 30 175261 1981 10 96 32 67 104 103 89 128 152 44 78 175261 1982 64 69 68 71 48 112 42 111 69 34 175261 1983 103 50 112 107 70 80 108 18 201 81 175261 1984 23 89 80 182 90 93 50 38 62 69 78 175261 1985 22 55 48 36 82 102 81 80 78 54 87 50 175261 1986 105 26 79 26 64 83 88 139 92 49 82 41 175261 1987 50 7 70 59 50 127 60 49 111 77 69 36 175261 1988 30 51 28 82 73 92 115 118 34 66 130 36 175261 1989 40 43 75 76 166 95 52 160 114 67 89 23 175261 1990 87 65 47 82 98 120 84 141 80 204 63 103 175261 1991 60 36 70 122 82 85 56 230 75 108 78 62 175261 1992 42 48 134 58 22 110 98 106 105 68 89 43 175261 1993 52 67 62 106 55 88 132 47 116 72 60 86