Observed and urbanization-adjusted annual maximum peak discharge and associated urban fraction and precipitation values at USGS streamgage:
04094000 LITTLE CALUMET RIVER AT PORTER, IN
| 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 |
| 1945 | 1 | -- | 281 | 0.027 | 1.044 | 2440 | 3160 | 0.068 |
| 1946 | 1 | -- | 281 | 0.027 | 1.219 | 715 | 1040 | 0.734 |
| 1947 | 1 | -- | 281 | 0.028 | 2.051 | 2140 | 2790 | 0.099 |
| 1948 | 1 | -- | 281 | 0.029 | 1.586 | 1960 | 2560 | 0.134 |
| 1949 | 1 | -- | 281 | 0.030 | 0.869 | 690 | 1010 | 0.753 |
| 1950 | 1 | -- | 461 | 0.031 | 1.384 | 1720 | 2260 | 0.188 |
| 1951 | 1 | -- | 461 | 0.032 | 1.963 | 1360 | 1830 | 0.327 |
| 1952 | 1 | -- | 461 | 0.034 | 0.821 | 1060 | 1470 | 0.495 |
| 1953 | 1 | -- | 461 | 0.036 | 0.731 | 521 | 789 | 0.854 |
| 1954 | 1 | -- | 461 | 0.038 | 1.253 | 1170 | 1600 | 0.428 |
| 1955 | 1 | -- | 461 | 0.040 | 3.435 | 3110 | 3920 | 0.035 |
| 1956 | 1 | -- | 461 | 0.041 | 1.746 | 1370 | 1830 | 0.328 |
| 1957 | 1 | -- | 461 | 0.043 | 0.651 | 848 | 1190 | 0.654 |
| 1958 | 1 | -- | 461 | 0.045 | 0.318 | 490 | 742 | 0.876 |
| 1959 | 1 | -- | 461 | 0.047 | 1.558 | 1420 | 1880 | 0.309 |
| 1960 | 1 | -- | 461 | 0.049 | 1.003 | 1120 | 1520 | 0.468 |
| 1961 | 1 | -- | 461 | 0.051 | 1.117 | 1020 | 1390 | 0.539 |
| 1962 | 1 | -- | 461 | 0.053 | 0.256 | 710 | 1010 | 0.753 |
| 1963 | 1 | -- | 461 | 0.055 | 1.208 | 460 | 695 | 0.892 |
| 1964 | 1 | -- | 461 | 0.057 | 0.607 | 282 | 459 | 0.956 |
| 1965 | 1 | -- | 461 | 0.059 | 0.806 | 680 | 964 | 0.774 |
| 1966 | 1 | -- | 461 | 0.061 | 1.781 | 1990 | 2530 | 0.140 |
| 1967 | 1 | -- | 461 | 0.064 | 1.062 | 890 | 1210 | 0.640 |
| 1968 | 1 | -- | 461 | 0.066 | 1.149 | 1290 | 1700 | 0.383 |
| 1969 | 1 | -- | 461 | 0.068 | 0.720 | 616 | 876 | 0.816 |
| 1970 | 1 | -- | 461 | 0.070 | 1.373 | 965 | 1300 | 0.598 |
| 1971 | 1 | -- | 461 | 0.075 | 0.570 | 708 | 981 | 0.766 |
| 1972 | 1 | -- | 461 | 0.080 | 1.681 | 1300 | 1690 | 0.387 |
| 1973 | 1 | -- | 461 | 0.085 | 1.334 | 1400 | 1790 | 0.343 |
| 1974 | 1 | -- | 461 | 0.090 | 0.767 | 752 | 1020 | 0.749 |
| 1975 | 1 | -- | 461 | 0.095 | 1.342 | 1080 | 1400 | 0.533 |
| 1976 | 1 | -- | 461 | 0.100 | 0.953 | 1250 | 1600 | 0.430 |
| 1977 | 1 | -- | 461 | 0.105 | 0.773 | 453 | 642 | 0.910 |
| 1978 | 1 | -- | 461 | 0.110 | 0.369 | 986 | 1270 | 0.613 |
| 1979 | 1 | -- | 461 | 0.115 | 0.821 | 1680 | 2050 | 0.246 |
| 1980 | 1 | -- | 461 | 0.120 | 0.361 | 707 | 929 | 0.790 |
| 1981 | 1 | -- | 461 | 0.123 | 2.057 | 2410 | 2880 | 0.090 |
| 1982 | 1 | -- | 461 | 0.127 | 0.341 | 2030 | 2430 | 0.157 |
| 1983 | 1 | -- | 461 | 0.130 | 0.714 | 1300 | 1600 | 0.425 |
| 1984 | 1 | -- | 461 | 0.134 | 0.621 | 1000 | 1250 | 0.621 |
| 1985 | 1 | -- | 461 | 0.137 | 0.833 | 1840 | 2190 | 0.203 |
| 1986 | 1 | -- | 461 | 0.141 | 1.130 | 1800 | 2140 | 0.219 |
| 1987 | 1 | -- | 461 | 0.145 | 1.344 | 900 | 1120 | 0.691 |
| 1988 | 1 | -- | 461 | 0.148 | 0.775 | 883 | 1100 | 0.704 |
| 1989 | 1 | -- | 461 | 0.152 | 1.825 | 2270 | 2650 | 0.120 |
| 1990 | 1 | -- | 461 | 0.155 | 2.797 | 3220 | 3700 | 0.042 |
| 1991 | 1 | -- | 461 | 0.164 | 1.786 | 3880 | 4390 | 0.023 |
| 1992 | 1 | E | 461 | 0.173 | 1.544 | 631 | 785 | 0.856 |
| 1993 | 1 | -- | 461 | 0.181 | 1.897 | 2220 | 2530 | 0.141 |
| 1994 | 1 | -- | 461 | 0.190 | 1.968 | 1120 | 1310 | 0.590 |
| 1995 | 1 | -- | 461 | 0.199 | 0.855 | 773 | 915 | 0.797 |
| 1996 | 1 | -- | 461 | 0.208 | 1.725 | 3400 | 3740 | 0.041 |
| 1997 | 1 | -- | 461 | 0.217 | 1.602 | 1300 | 1470 | 0.496 |
| 1998 | 1 | -- | 461 | 0.225 | 0.625 | 928 | 1050 | 0.730 |
| 1999 | 1 | -- | 461 | 0.234 | 0.922 | 896 | 1010 | 0.754 |
| 2000 | 1 | -- | 461 | 0.243 | 0.965 | 1310 | 1430 | 0.514 |
| 2001 | 1 | -- | 461 | 0.251 | 0.556 | 1200 | 1310 | 0.591 |
| 2002 | 1 | -- | 461 | 0.259 | 1.218 | 1130 | 1220 | 0.637 |
| 2003 | 1 | -- | 461 | 0.267 | 0.927 | 793 | 858 | 0.824 |
| 2004 | 1 | -- | 461 | 0.275 | 1.421 | 740 | 793 | 0.852 |
| 2005 | 1 | -- | 461 | 0.283 | 1.213 | 1690 | 1760 | 0.355 |
| 2006 | 1 | -- | 461 | 0.291 | 1.149 | 881 | 920 | 0.795 |
| 2007 | 1 | -- | 461 | 0.299 | 2.356 | 1370 | 1410 | 0.529 |
| 2008 | 1 | -- | 461 | 0.307 | 3.758 | 5320 | 5380 | 0.014 |
| 2009 | 1 | -- | 461 | 0.316 | 0.632 | 1620 | 1630 | 0.412 |