Observed and urbanization-adjusted annual maximum peak discharge and associated urban fraction and precipitation values at USGS streamgage:
05545100 SUGAR CREEK AT ELKHORN, WI
| Water year | Segment | Discharge code | Cumulative reservoir storage (acre-feet) | Urban fraction | Precipitation (inches) | Observed peak discharge (ft3/s) | Adjusted peak discharge (ft3/s) | Exceedance probability |
| 1962 | 1 | -- | 0 | 0.021 | 0.001 | 125 | 128 | 0.577 |
| 1963 | 1 | -- | 0 | 0.021 | 0.551 | 55 | 57 | 0.903 |
| 1964 | 1 | -- | 0 | 0.022 | 0.637 | 37 | 38 | 0.952 |
| 1965 | 1 | -- | 0 | 0.022 | 1.158 | 56 | 58 | 0.900 |
| 1966 | 1 | -- | 0 | 0.022 | 0.824 | 145 | 148 | 0.467 |
| 1967 | 1 | -- | 0 | 0.022 | 2.305 | 122 | 125 | 0.597 |
| 1968 | 1 | -- | 0 | 0.022 | 1.251 | 73 | 75 | 0.833 |
| 1969 | 1 | -- | 0 | 0.022 | 2.003 | 125 | 128 | 0.578 |
| 1970 | 1 | -- | 0 | 0.022 | 1.214 | 95 | 97 | 0.733 |
| 1971 | 1 | -- | 0 | 0.023 | 0.762 | 150 | 153 | 0.444 |
| 1972 | 1 | -- | 0 | 0.023 | 1.769 | 225 | 229 | 0.193 |
| 1973 | 1 | -- | 0 | 0.023 | 1.939 | 900 | 912 | 0.003 |
| 1974 | 1 | -- | 0 | 0.023 | 0.658 | 315 | 320 | 0.073 |
| 1975 | 1 | -- | 0 | 0.023 | 0.414 | 87 | 89 | 0.771 |
| 1976 | 1 | -- | 0 | 0.023 | 1.665 | 190 | 194 | 0.293 |
| 1977 | 1 | -- | 0 | 0.024 | 1.103 | 65 | 67 | 0.868 |
| 1978 | 1 | -- | 0 | 0.024 | 1.890 | 165 | 168 | 0.380 |
| 1979 | 1 | -- | 0 | 0.024 | 0.234 | 185 | 188 | 0.310 |
| 1980 | 1 | -- | 0 | 0.024 | 0.847 | 92 | 94 | 0.750 |
| 1981 | 1 | -- | 0 | 0.025 | 0.770 | 170 | 173 | 0.362 |
| 1982 | 1 | -- | 0 | 0.025 | 1.415 | 295 | 300 | 0.089 |
| 1983 | 1 | -- | 0 | 0.025 | 1.794 | 220 | 224 | 0.205 |
| 1984 | 1 | -- | 0 | 0.025 | 0.606 | 100 | 102 | 0.709 |
| 1985 | 1 | -- | 0 | 0.026 | 0.388 | 160 | 163 | 0.401 |
| 1986 | 1 | -- | 0 | 0.026 | 0.222 | 190 | 193 | 0.294 |
| 1987 | 1 | -- | 0 | 0.026 | 1.366 | 95 | 97 | 0.735 |
| 1988 | 1 | -- | 0 | 0.027 | 0.189 | 145 | 148 | 0.471 |
| 1989 | 1 | -- | 0 | 0.027 | 2.551 | 65 | 66 | 0.869 |
| 1990 | 1 | -- | 0 | 0.027 | 1.283 | 75 | 77 | 0.828 |
| 1991 | 1 | -- | 0 | 0.028 | 0.757 | 75 | 76 | 0.828 |
| 1992 | 1 | -- | 0 | 0.030 | 1.182 | 45 | 46 | 0.934 |
| 1993 | 1 | -- | 0 | 0.031 | 1.130 | 235 | 238 | 0.178 |
| 1994 | 1 | -- | 0 | 0.032 | 1.052 | 185 | 187 | 0.314 |
| 1995 | 1 | -- | 0 | 0.033 | 1.487 | 83 | 84 | 0.794 |
| 1996 | 1 | -- | 0 | 0.034 | 1.422 | 215 | 217 | 0.224 |
| 1997 | 1 | -- | 0 | 0.035 | 1.719 | 134 | 135 | 0.536 |
| 1998 | 1 | -- | 0 | 0.036 | 0.785 | 117 | 118 | 0.630 |
| 1999 | 1 | -- | 0 | 0.037 | 2.126 | 235 | 236 | 0.181 |
| 2000 | 1 | -- | 0 | 0.038 | 1.165 | 153 | 154 | 0.442 |
| 2001 | 1 | -- | 0 | 0.039 | 2.006 | 163 | 164 | 0.398 |
| 2002 | 1 | -- | 0 | 0.039 | 0.886 | 110 | 110 | 0.666 |
| 2003 | 1 | -- | 0 | 0.040 | 0.908 | 42 | 42 | 0.943 |
| 2004 | 1 | -- | 0 | 0.040 | 1.143 | 208 | 208 | 0.247 |
| 2005 | 1 | -- | 0 | 0.040 | 0.480 | 110 | 110 | 0.667 |
| 2006 | 1 | -- | 0 | 0.041 | 1.021 | 344 | 344 | 0.061 |
| 2007 | 1 | -- | 0 | 0.041 | 1.374 | 336 | 336 | 0.065 |
| 2008 | 1 | -- | 0 | 0.041 | 0.416 | 277 | 277 | 0.115 |
| 2009 | 1 | -- | 0 | 0.042 | 0.780 | 277 | 277 | 0.115 |