U.S. DEPARTMENT OF THE INTERIOR - U.S. GEOLOGICAL SURVEY - WATER RESOURCES STATION NUMBER 03274950 LITTLE WILLIAMS CREEK AT CONNERSVILLE, IND SOURCE AGENCY USGS STATE 18 COUNTY 041 LATITUDE 393816 LONGITUDE 0851020 NAD27 DRAINAGE AREA 9.16 CONTRIBUTING DRAINAGE AREA DATUM 842.00 NGVD29 Date Processed: 2007-08-28 16:41 By dvarvin PARAMETER CODE - 00060 Discharge STATISTIC CODE - 00003 MEAN DURATION TABLE OF DAILY VALUES FOR PERIOD OCT TO SEP CLASS 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 WATER YEAR NUMBER OF DAYS IN CLASS RANGE 1969 1969 32 13 13 27 36 61 59 51 26 22 6 8 5 2 1 1 2 1970 1970 4 5 13 49 40 51 41 43 40 41 15 8 7 1 3 1 2 1 1971 1971 8 17 14 21 27 20 64 65 50 28 21 9 6 4 2 2 4 1 2 1972 1972 3 33 18 46 23 23 27 40 53 36 29 12 13 5 3 2 1973 1973 26 23 14 14 21 35 72 42 38 37 24 6 7 4 1 1 1974 1974 18 36 36 26 26 36 52 56 39 15 14 6 3 1 1 1975 1975 23 17 22 13 14 15 38 33 22 19 61 39 26 8 6 5 3 1 1976 1976 22 27 18 59 41 48 46 19 28 23 11 9 7 4 2 1 1 1977 1977 2 12 52 54 66 26 23 21 25 9 26 15 17 4 2 3 1 3 2 2 1978 1978 12 25 57 79 31 49 29 26 14 21 6 5 4 3 2 2 1979 1979 6 33 60 63 59 47 38 15 12 13 7 3 3 2 3 1 1980 1980 3 15 15 14 60 58 63 38 44 20 10 10 2 7 3 2 1 1 1981 1981 9 59 88 29 35 23 17 14 33 17 16 9 4 5 4 2 1 1982 1982 26 75 37 21 19 41 20 28 23 24 25 6 5 2 6 2 2 2 1 1983 1983 3 16 11 9 13 54 15 21 27 47 56 34 25 8 9 5 5 3 1 1 2 1984 1984 3 4 3 14 34 39 14 19 55 26 40 37 39 16 10 6 3 1 2 1 1985 1985 20 28 43 16 49 45 61 29 27 12 12 9 5 3 1 3 1 1 1986 1986 2 7 27 37 25 10 24 31 39 45 51 35 14 6 3 3 1 2 2 1 1987 1987 5 3 18 5 17 10 21 26 59 102 55 21 8 5 3 1 2 3 1 1988 1988 42 1 4 1 1 4 7 11 5 11 7 10 23 28 33 17 25 26 17 29 27 16 13 2 2 1 1 1 1 1989 1989 1 2 2 5 3 3 3 4 15 26 74 26 27 27 29 29 34 19 17 8 3 1 2 3 1 1 1990 1990 14 28 22 20 63 42 60 63 27 10 4 3 2 3 2 2 1991 1991 5 21 28 16 15 14 14 42 41 40 64 30 12 7 9 1 1 3 1 1 CLASS VALUE TOTAL ACCUM PERCT CLASS VALUE TOTAL ACCUM PERCT CLASS VALUE TOTAL ACCUM PERCT 1 0.00 42 8400 100.00 13 0.51 217 8159 97.13 25 26.00 190 522 6.21 2 0.01 2 8358 99.50 14 0.71 317 7942 94.55 26 36.00 118 332 3.95 3 0.02 4 8356 99.48 15 0.98 634 7625 90.77 27 50.00 67 214 2.55 4 0.03 1 8352 99.43 16 1.40 684 6991 83.23 28 70.00 52 147 1.75 5 0.04 1 8351 99.42 17 1.90 522 6307 75.08 29 97.00 39 95 1.13 6 0.05 4 8350 99.40 18 2.60 706 5785 68.87 30 134.00 27 56 0.67 7 0.07 9 8346 99.36 19 3.60 1029 5079 60.46 31 187.00 21 29 0.35 8 0.10 13 8337 99.25 20 5.10 879 4050 48.21 32 259.00 3 8 0.10 9 0.14 10 8324 99.10 21 7.00 930 3171 37.75 33 360.00 3 5 0.06 10 0.19 22 8314 98.98 22 9.80 836 2241 26.68 34 499.00 2 2 0.02 11 0.27 34 8292 98.71 23 14.00 558 1405 16.73 35 0.00 0 0 0.00 12 0.37 99 8258 98.31 24 19.00 325 847 10.08 VALUE EXCEEDED 'P' PERCENT OF TIME P95 = 0.7 P90 = 1.0 P80 = 1.6 P75 = 1.9 P50 = 4.9 P25 = 10.5 P10 = 19.2 P05 = 31.4 U.S. DEPARTMENT OF THE INTERIOR - U.S. GEOLOGICAL SURVEY - WATER RESOURCES STATION NUMBER 03274950 LITTLE WILLIAMS CREEK AT CONNERSVILLE, IND SOURCE AGENCY USGS STATE 18 COUNTY 041 LATITUDE 393816 LONGITUDE 0851020 NAD27 DRAINAGE AREA 9.16 CONTRIBUTING DRAINAGE AREA DATUM 842.00 NGVD29 Date Processed: 2007-08-28 16:41 By dvarvin PARAMETER CODE - 00060 Discharge STATISTIC CODE - 00003 MEAN LOWEST MEAN VALUE AND RANKING FOR THE FOLLOWING NUMBER OF CONSECUTIVE DAYS FOR PERIOD APR TO MAR WATER YEAR RANGE 1 3 7 14 30 60 90 120 183 1969 1970 1.30 20 1.33 19 1.50 19 1.71 19 1.91 18 2.35 18 2.93 19 4.51 20 4.80 17 1970 1971 0.58 11 0.75 12 1.00 15 1.27 18 2.06 19 2.44 19 2.72 18 2.94 16 3.61 13 1971 1972 0.46 8 0.46 7 0.55 7 0.71 9 0.83 8 0.91 8 1.16 6 1.25 5 1.87 5 1972 1973 0.46 9 0.54 10 0.63 10 0.72 10 0.78 7 0.82 7 1.19 8 1.46 10 4.28 14 1973 1974 0.98 16 1.06 16 1.10 16 1.21 17 1.49 17 1.51 14 1.78 12 2.52 14 5.72 20 1974 1975 1.10 18 1.47 20 1.60 20 1.83 20 3.01 21 3.29 20 3.60 20 3.85 19 5.68 19 1975 1976 0.37 6 0.38 6 0.40 6 0.47 6 0.56 5 0.76 6 1.28 10 1.38 8 1.89 6 1976 1977 0.50 10 0.53 9 0.56 8 0.59 7 0.65 6 0.75 5 0.94 4 1.02 4 0.98 2 1977 1978 0.35 5 0.36 5 0.38 5 0.42 5 1.00 11 2.27 17 2.67 17 3.29 17 4.33 15 1978 1979 1.80 21 1.80 21 1.87 21 2.08 21 2.41 20 3.31 21 4.16 21 6.84 21 8.00 21 1979 1980 3.30 23 3.33 23 3.60 23 3.87 23 4.06 22 5.63 22 8.01 23 13.5 23 13.3 23 1980 1981 1.00 17 1.10 17 1.14 17 1.19 15 1.27 15 1.54 15 1.60 11 1.58 11 3.26 10 1981 1982 0.74 14 0.74 11 0.75 11 0.84 11 0.89 9 1.12 10 1.19 9 1.25 6 2.15 7 1982 1983 0.82 15 0.85 15 0.91 14 1.04 13 1.06 12 1.11 9 1.17 7 1.30 7 2.45 8 1983 1984 0.25 4 0.25 4 0.27 4 0.29 3 0.33 3 0.57 4 0.97 5 1.42 9 3.32 11 1984 1985 0.70 12 0.76 13 0.90 13 1.07 14 1.13 14 1.46 13 2.44 16 2.70 15 3.45 12 1985 1986 0.73 13 0.77 14 0.81 12 0.88 12 1.06 13 1.17 11 1.91 13 2.33 13 4.34 16 1986 1987 0.42 7 0.48 8 0.56 9 0.64 8 0.96 10 1.43 12 2.42 15 3.77 18 5.41 18 1987 1988 0.24 3 0.24 3 0.26 3 0.33 4 0.41 4 0.55 3 0.66 3 0.79 3 1.48 4 1988 1989 0.0000 1 0.0000 1 0.0000 1 0.0000 1 0.007 1 0.061 1 0.093 1 0.13 1 0.51 1 1989 1990 1.10 19 1.10 18 1.16 18 1.19 16 1.35 16 1.78 16 1.97 14 1.96 12 2.60 9 1990 1991 2.40 22 2.47 22 2.69 22 3.48 22 4.82 23 5.66 23 5.84 22 7.78 22 8.05 22 1991 1992 0.020 2 0.043 2 0.12 2 0.18 2 0.27 2 0.43 2 0.61 2 0.69 2 1.02 3 U.S. DEPARTMENT OF THE INTERIOR - U.S. GEOLOGICAL SURVEY - WATER RESOURCES STATION NUMBER 03274950 LITTLE WILLIAMS CREEK AT CONNERSVILLE, IND SOURCE AGENCY USGS STATE 18 COUNTY 041 LATITUDE 393816 LONGITUDE 0851020 NAD27 DRAINAGE AREA 9.16 CONTRIBUTING DRAINAGE AREA DATUM 842.00 NGVD29 Date Processed: 2007-08-28 16:41 By dvarvin PARAMETER CODE - 00060 Discharge STATISTIC CODE - 00003 MEAN HIGHEST MEAN VALUE AND RANKING FOR THE FOLLOWING NUMBER OF CONSECUTIVE DAYS FOR PERIOD OCT TO SEP WATER YEAR RANGE 1 3 7 15 30 60 90 120 183 1969 1969 258 9 137 11 73.4 11 61.7 3 41.7 5 27.8 9 22.5 8 19.0 13 16.6 11 1970 1970 200 14 99.3 17 50.2 19 29.5 20 26.9 19 20.3 18 19.2 16 16.7 17 13.1 17 1971 1971 212 13 138 10 72.0 12 60.5 4 46.2 2 28.2 8 20.9 11 17.6 16 14.0 16 1972 1972 93.0 23 48.7 23 38.1 22 28.0 21 21.8 20 17.6 20 14.0 21 12.4 21 10.4 19 1973 1973 153 20 94.0 19 58.6 16 42.2 16 34.3 12 28.6 7 23.2 7 21.8 6 19.0 4 1974 1974 521 1 204 1 96.0 3 49.6 11 28.2 17 22.8 14 20.8 12 19.0 14 18.0 8 1975 1975 412 4 165 6 83.0 7 46.6 12 37.3 9 29.0 6 25.2 4 23.3 4 18.9 7 1976 1976 105 22 65.3 22 35.9 23 23.5 22 20.9 21 17.0 21 14.4 20 12.7 20 9.72 21 1977 1977 146 21 98.7 18 55.9 17 44.6 15 29.0 15 22.0 15 17.5 18 14.0 18 10.1 20 1978 1978 198 15 127 12 79.6 9 58.2 6 35.9 10 26.6 11 22.1 10 19.3 11 17.0 10 1979 1979 295 7 164 7 105 2 67.4 1 45.1 3 31.8 4 24.8 5 20.2 9 22.2 1 1980 1980 499 2 182 2 87.9 6 50.8 10 31.2 13 25.5 12 19.9 15 21.0 7 19.0 5 1981 1981 224 12 110 14 71.1 13 54.3 9 38.1 8 30.4 5 22.3 9 21.0 8 15.6 14 1982 1982 283 8 151 9 78.0 10 55.8 8 46.4 1 34.8 2 28.6 3 24.8 2 20.8 3 1983 1983 161 19 119 13 66.4 14 38.2 17 30.4 14 20.6 17 16.3 19 14.0 19 12.6 18 1984 1984 163 18 79.3 20 46.1 20 30.3 18 27.8 18 24.8 13 20.5 13 18.3 15 15.6 15 1985 1985 300 6 181 3 95.4 4 57.2 7 40.8 6 34.5 3 29.4 1 24.9 1 21.2 2 1986 1986 253 10 157 8 81.0 8 45.3 13 34.6 11 21.4 16 20.2 14 19.3 12 16.3 12 1987 1987 194 16 74.7 21 42.4 21 22.2 23 13.1 23 9.37 23 8.66 23 7.59 23 6.89 23 1988 1988 170 17 105 16 54.3 18 29.6 19 20.8 22 15.4 22 13.3 22 11.0 22 8.11 22 1989 1989 455 3 173 5 115 1 60.2 5 43.6 4 36.1 1 29.0 2 23.6 3 17.4 9 1990 1990 230 11 108 15 61.1 15 44.7 14 28.5 16 19.9 19 18.8 17 19.8 10 16.2 13 1991 1991 410 5 181 4 88.6 5 64.2 2 40.8 7 27.1 10 23.5 6 23.0 5 19.0 6 U.S. DEPARTMENT OF THE INTERIOR - U.S. GEOLOGICAL SURVEY - WATER RESOURCES STATION NUMBER 03274950 LITTLE WILLIAMS CREEK AT CONNERSVILLE, IND SOURCE AGENCY USGS STATE 18 COUNTY 041 LATITUDE 393816 LONGITUDE 0851020 NAD27 DRAINAGE AREA 9.16 CONTRIBUTING DRAINAGE AREA DATUM 842.00 NGVD29 Date Processed: 2007-08-28 16:41 By dvarvin PARAMETER CODE - 00060 Discharge STATISTIC CODE - 00003 MEAN ANNUAL AND/OR SEMI-ANNUAL VALUES MEAN VALUE AND RANKING FOR MEAN VALUE AND RANKING FOR PERIOD INCLUDED IN LOW-VALUE ANALYSIS PERIOD INCLUDED IN HIGH-VALUE ANALYSIS (APR-MAR) (OCT-SEP) WATER YEAR WATER YEAR RANGE RANGE 1969 1970 9.23 10 1969 1969 11.8 6 1970 1971 10.6 13 1970 1970 8.26 17 1971 1972 4.30 3 1971 1971 8.36 16 1972 1973 11.3 16 1972 1972 6.22 19 1973 1974 11.2 15 1973 1973 13.4 3 1974 1975 14.2 21 1974 1974 11.4 8 1975 1976 7.27 8 1975 1975 10.8 11 1976 1977 4.95 4 1976 1976 6.14 20 1977 1978 9.67 12 1977 1977 5.96 21 1978 1979 13.2 19 1978 1978 12.9 4 1979 1980 17.1 23 1979 1979 15.9 1 1980 1981 9.22 9 1980 1980 15.2 2 1981 1982 13.8 20 1981 1981 8.60 15 1982 1983 6.78 7 1982 1982 11.5 7 1983 1984 9.54 11 1983 1983 7.26 18 1984 1985 12.7 18 1984 1984 9.54 14 1985 1986 11.7 17 1985 1985 12.6 5 1986 1987 6.30 6 1986 1986 10.3 12 1987 1988 5.12 5 1987 1987 5.30 22 1988 1989 4.14 2 1988 1988 4.28 23 1989 1990 11.1 14 1989 1989 9.59 13 1990 1991 14.7 22 1990 1990 11.1 9 1991 1992 3.63 1 1991 1991 11.1 10 U.S. DEPARTMENT OF THE INTERIOR - U.S. GEOLOGICAL SURVEY - WATER RESOURCES STATION NUMBER 03274950 LITTLE WILLIAMS CREEK AT CONNERSVILLE, IND SOURCE AGENCY USGS STATE 18 COUNTY 041 LATITUDE 393816 LONGITUDE 0851020 NAD27 DRAINAGE AREA 9.16 CONTRIBUTING DRAINAGE AREA DATUM 842.00 NGVD29 Date Processed: 2007-08-28 16:23 By dvarvin Daily Values Monthly and Annual Statistics MEAN Discharge Number of years retrieved is 25 Normal monthly means (All days) Year Oct Nov Dec Jan Feb March April May June July Aug Sept 1968 * * * * * * * * * * * 2.21 1969 1.27 7.10 16.7 32.9 15.7 7.37 14.7 10.8 12.7 12.8 5.76 4.06 1970 2.22 6.92 6.93 12.0 8.40 13.4 26.9 8.28 5.59 3.82 2.13 2.76 1971 3.40 4.82 7.75 6.07 48.4 10.2 4.46 9.49 3.86 2.78 1.13 1.09 1972 1.45 1.39 7.15 6.08 5.32 7.22 20.8 13.6 7.46 2.22 0.795 1.28 1973 1.78 12.9 21.7 11.2 10.7 31.1 25.0 8.94 21.2 11.1 4.11 1.50 1974 1.56 6.51 9.73 18.5 12.4 14.3 16.1 18.0 27.0 4.98 4.42 3.96 1975 3.02 5.56 12.8 18.1 31.4 26.4 17.5 8.40 3.79 1.10 2.17 0.716 1976 2.26 2.41 7.85 13.4 15.9 12.3 4.74 4.00 5.16 2.69 2.64 0.743 1977 1.06 1.35 1.05 0.756 25.1 11.8 10.9 8.04 3.35 1.82 6.84 1.00 1978 9.56 5.21 24.7 7.71 3.65 32.0 18.6 13.9 8.61 7.07 19.2 3.45 1979 4.04 5.49 17.0 12.5 19.7 28.9 17.4 8.35 8.64 34.6 26.9 7.45 1980 4.07 27.9 19.7 11.6 9.81 28.2 16.2 8.52 13.1 26.6 15.0 1.78 1981 1.61 1.70 1.69 1.41 16.8 6.74 18.7 34.6 12.3 4.72 2.31 1.30 1982 1.18 1.26 6.82 31.9 26.6 24.0 12.5 16.8 10.8 4.62 1.43 1.09 1983 1.14 1.81 10.6 5.78 9.76 5.17 17.8 22.9 7.59 3.15 1.34 0.343 1984 2.24 8.68 14.0 4.96 11.7 19.8 27.1 13.8 3.76 2.17 5.10 1.33 1985 2.54 7.01 19.9 11.3 29.1 30.1 17.5 19.1 6.01 3.81 4.20 1.35 1986 1.17 26.7 14.9 5.64 25.9 16.0 8.73 10.3 7.31 4.70 1.24 2.05 1987 12.8 5.76 7.10 4.40 4.55 6.43 10.6 3.13 2.70 4.65 0.951 0.409 1988 0.740 1.13 2.98 3.80 21.3 9.87 9.01 2.48 0.577 0.160 0.017 0.114 1989 0.505 2.00 2.27 6.51 5.76 20.3 26.0 38.6 6.28 2.10 1.52 2.87 1990 1.61 5.52 3.24 6.80 23.7 16.4 11.4 27.7 8.27 10.5 13.3 5.58 1991 7.09 4.91 35.0 14.3 14.2 23.5 13.3 13.3 3.45 1.63 0.949 0.854 1992 0.322 0.718 1.84 2.40 1.92 2.91 14.2 * * * * * * Indicates a no-value month Station 03274950 LITTLE WILLIAMS CREEK AT CONNERSVILLE, IND MEAN Discharge Ranked Normal monthly means (All days) Oct Nov Dec Jan Feb March * 1968 * 1968 * 1968 * 1968 * 1968 * 1968 0.322 1992 0.718 1992 1.05 1977 0.756 1977 1.92 1992 2.91 1992 0.505 1989 1.13 1988 1.69 1981 1.41 1981 3.65 1978 5.17 1983 0.740 1988 1.26 1982 1.84 1992 2.40 1992 4.55 1987 6.43 1987 1.06 1977 1.35 1977 2.27 1989 3.80 1988 5.32 1972 6.74 1981 1.14 1983 1.39 1972 2.98 1988 4.40 1987 5.76 1989 7.22 1972 1.17 1986 1.70 1981 3.24 1990 4.96 1984 8.40 1970 7.37 1969 1.18 1982 1.81 1983 6.82 1982 5.64 1986 9.76 1983 9.87 1988 1.27 1969 2.00 1989 6.93 1970 5.78 1983 9.81 1980 10.2 1971 1.45 1972 2.41 1976 7.10 1987 6.07 1971 10.7 1973 11.8 1977 1.56 1974 4.82 1971 7.15 1972 6.08 1972 11.7 1984 12.3 1976 1.61 1981 4.91 1991 7.75 1971 6.51 1989 12.4 1974 13.4 1970 1.61 1990 5.21 1978 7.85 1976 6.80 1990 14.2 1991 14.3 1974 1.78 1973 5.49 1979 9.73 1974 7.71 1978 15.7 1969 16.0 1986 2.22 1970 5.52 1990 10.6 1983 11.2 1973 15.9 1976 16.4 1990 2.24 1984 5.56 1975 12.8 1975 11.3 1985 16.8 1981 19.8 1984 2.26 1976 5.76 1987 14.0 1984 11.6 1980 19.7 1979 20.3 1989 2.54 1985 6.51 1974 14.9 1986 12.0 1970 21.3 1988 23.5 1991 3.02 1975 6.92 1970 16.7 1969 12.5 1979 23.7 1990 24.0 1982 3.40 1971 7.01 1985 17.0 1979 13.4 1976 25.1 1977 26.4 1975 4.04 1979 7.10 1969 19.7 1980 14.3 1991 25.9 1986 28.2 1980 4.07 1980 8.68 1984 19.9 1985 18.1 1975 26.6 1982 28.9 1979 7.09 1991 12.9 1973 21.7 1973 18.5 1974 29.1 1985 30.1 1985 9.56 1978 26.7 1986 24.7 1978 31.9 1982 31.4 1975 31.1 1973 12.8 1987 27.9 1980 35.0 1991 32.9 1969 48.4 1971 32.0 1978 * Indicates a no-value month Station 03274950 LITTLE WILLIAMS CREEK AT CONNERSVILLE, IND MEAN Discharge Ranked Normal monthly means (All days) April May June July Aug Sept * 1968 * 1968 * 1968 * 1968 * 1968 * 1992 4.46 1971 * 1992 * 1992 * 1992 * 1992 0.114 1988 4.74 1976 2.48 1988 0.577 1988 0.160 1988 0.017 1988 0.343 1983 8.73 1986 3.13 1987 2.70 1987 1.10 1975 0.795 1972 0.409 1987 9.01 1988 4.00 1976 3.35 1977 1.63 1991 0.949 1991 0.716 1975 10.6 1987 8.04 1977 3.45 1991 1.82 1977 0.951 1987 0.743 1976 10.9 1977 8.28 1970 3.76 1984 2.10 1989 1.13 1971 0.854 1991 11.4 1990 8.35 1979 3.79 1975 2.17 1984 1.24 1986 1.00 1977 12.5 1982 8.40 1975 3.86 1971 2.22 1972 1.34 1983 1.09 1971 13.3 1991 8.52 1980 5.16 1976 2.69 1976 1.43 1982 1.09 1982 14.2 1992 8.94 1973 5.59 1970 2.78 1971 1.52 1989 1.28 1972 14.7 1969 9.49 1971 6.01 1985 3.15 1983 2.13 1970 1.30 1981 16.1 1974 10.3 1986 6.28 1989 3.81 1985 2.17 1975 1.33 1984 16.2 1980 10.8 1969 7.31 1986 3.82 1970 2.31 1981 1.35 1985 17.4 1979 13.3 1991 7.46 1972 4.62 1982 2.64 1976 1.50 1973 17.5 1975 13.6 1972 7.59 1983 4.65 1987 4.11 1973 1.78 1980 17.5 1985 13.8 1984 8.27 1990 4.70 1986 4.20 1985 2.05 1986 17.8 1983 13.9 1978 8.61 1978 4.72 1981 4.42 1974 2.21 1968 18.6 1978 16.8 1982 8.64 1979 4.98 1974 5.10 1984 2.76 1970 18.7 1981 18.0 1974 10.8 1982 7.07 1978 5.76 1969 2.87 1989 20.8 1972 19.1 1985 12.3 1981 10.5 1990 6.84 1977 3.45 1978 25.0 1973 22.9 1983 12.7 1969 11.1 1973 13.3 1990 3.96 1974 26.0 1989 27.7 1990 13.1 1980 12.8 1969 15.0 1980 4.06 1969 26.9 1970 34.6 1981 21.2 1973 26.6 1980 19.2 1978 5.58 1990 27.1 1984 38.6 1989 27.0 1974 34.6 1979 26.9 1979 7.45 1979 * Indicates a no-value month Station 03274950 LITTLE WILLIAMS CREEK AT CONNERSVILLE, IND MEAN Discharge Quartiles of Normal monthly means (All days) Oct Nov Dec Jan Feb March Twenty-Fifth Percentile 1.17 1.73 4.13 5.13 8.74 8.00 Fiftieth Percentile 1.70 5.35 8.79 7.25 14.9 15.2 Seventy-Fifth Percentile 3.31 6.99 16.9 13.2 24.8 25.8 April May June July Aug Sept Twenty-Fifth Percentile 11.0 8.35 3.79 2.17 1.24 0.890 Fiftieth Percentile 16.1 10.8 7.31 3.82 2.31 1.34 Seventy-Fifth Percentile 18.7 18.0 10.8 7.07 5.76 2.84