Lilac leaf and bloom dates for N Wisconsin Brule 46.5 -91.7 471131 1972 1 136 999 471131 1973 1 116 156 471131 1974 1 123 157 471131 1975 1 130 147 471131 1976 1 110 147 471131 1977 1 118 138 471131 1978 1 125 145 471131 1979 1 136 161 471131 1980 1 117 144 471131 1981 1 119 151 471131 1982 1 124 152 471131 1983 1 124 161 471131 1984 1 124 158 471131 1986 1 118 152 471131 1989 1 128 149 471131 1990 1 114 999 471131 1991 1 121 142 471131 1992 1 126 153 471131 1993 1 128 155 471131 1994 1 121 152 471131 1995 1 131 155 471131 1996 1 136 158 471131 1997 1 129 158 471131 1998 1 115 136 Spooner 45.82 -91.88 478027 1963 1 106 151 478027 1964 1 117 137 478027 1965 1 122 145 478027 1966 1 129 151 478027 1967 1 118 151 478027 1968 1 999 136 478027 1971 1 108 147 478027 1972 1 122 137 478027 1973 1 107 148 Ashland 46.57 -90.97 470349 1963 1 123 152 470349 1964 1 125 145 470349 1965 1 128 159 470349 1966 1 136 161 470349 1967 1 136 160 470349 1968 1 118 157 470349 1969 1 123 154 470349 1970 1 128 999 470349 1972 1 135 999 470349 1973 1 115 149 470349 1974 1 122 153 470349 1975 1 125 152 470349 1977 1 104 138 470349 1980 1 125 149 470349 1981 1 112 156 470349 1982 1 110 144 470349 1986 1 115 143 Green Bay 44.47 -88.43 473269 1975 1 123 142 473269 1976 1 106 140 473269 1977 1 102 999 473269 1980 1 112 140 473269 1981 1 99 139 473269 1982 1 114 999 473269 1983 1 112 148 473269 1986 1 91 999 473269 1988 1 105 136 473269 1989 1 111 999 473269 1990 1 92 127 473269 1991 1 999 133 473269 1992 1 122 140 473269 1993 1 116 135 473269 1994 1 113 135 473269 1996 1 112 145 473269 1997 1 94 145 473269 1998 1 999 123 473269 1999 1 91 127 473269 2000 1 86 126 473269 2001 1 999 124 473269 2002 1 999 137