Results
| Country: | U.S.A.
| | Station: | YANKTON SD | | River: | JAMES RIVER | | Area: | 54236.57 | | Lat: | 42.99 | | Lon: | -97.37 | | Source: | USGS | | PointID: | 6478513 | | Area Units: | km2 | | Discharge Units: | m3/sec | | Starting Year: | 1938 | | Ending Year: | 1993 | | Total Years: | 56 | | Total Usable Years: | 55 | |
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| Year | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Avg Annual |
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| 1938 | 763.36 | 1262.64 | 1280.29 | 1122.77 | 551.54 | 312.19 | 253.87 | 206.39 | 401.77 | 190.26 | 292.63 | 924.6 | 630.19 |
| 1939 | 384.05 | 1606.89 | 1687.42 | 1434.73 | 400.05 | 164.95 | 98.95 | 71.72 | 40.97 | 108.31 | 237.84 | 269.45 | 542.11 |
| 1940 | 180.56 | 224.56 | 1051.47 | 4275.39 | 868.78 | 532.88 | 300.7 | 114.14 | 265.07 | 153.39 | 467.61 | 905.37 | 778.33 |
| 1941 | 696.05 | 342.23 | 793.97 | 1807.57 | 278.24 | 286.72 | 147.12 | 160.36 | 81.96 | 58.64 | 152.88 | 492.85 | 441.55 |
| 1942 | 430.42 | 492.31 | 1888.01 | 1247.27 | 1044.55 | 477.43 | 354.23 | 263.99 | 221.53 | 612.11 | 901.52 | 1076.14 | 750.79 |
| 1943 | 1574.79 | 1089.9 | 1752.91 | 1574.8 | 1960.27 | 758.54 | 182.06 | 133.51 | 81.7 | 338.56 | 955.7 | 266.36 | 889.09 |
| 1944 | 218.95 | 397.57 | 1547.2 | 1507.03 | 1300.48 | 605.9 | 202.83 | 85.21 | 98.49 | 190 | 218.5 | 493.9 | 572.17 |
| 1945 | 552.73 | 761.22 | 3278.56 | 1053.39 | 1735.56 | 770.32 | 399.94 | 314.75 | 524.14 | 882.39 | 1398.01 | 971.18 | 1053.52 |
| 1946 | 1036.77 | 355.52 | 1912.49 | 412.3 | 1849.28 | 1326.09 | 391.77 | 356.81 | 145.92 | 482.43 | 320.64 | 263.52 | 737.8 |
| 1947 | 1039.14 | 656.45 | 1045.9 | 1818.71 | 1873.12 | 948.71 | 775.98 | 382.94 | 252.15 | 94.37 | 418.87 | 367.94 | 806.19 |
| 1948 | 279.06 | 812.6 | 2313.86 | 2053.17 | 1277.64 | 490.83 | 348.28 | 209.37 | 77.74 | 94.49 | 471.19 | 746.66 | 764.57 |
| 1949 | 1765.7 | 1168.89 | 864.58 | 1168.36 | 792.05 | 230.43 | 98.32 | 95.97 | 144.4 | 161.31 | 262.22 | 776.14 | 627.36 |
| 1950 | 1378.67 | 936.08 | 1696.92 | 2065.35 | 851.34 | 675.63 | 253.67 | 269.05 | 453.25 | 443.54 | 1512.96 | 1756.02 | 1024.37 |
| 1951 | 1405.25 | 1724.91 | 1611.6 | 1832.87 | 496.46 | 467.71 | 376.21 | 145.66 | 89.87 | 87.79 | 427.4 | 852.98 | 793.23 |
| 1952 | 1842.98 | 1052.03 | 1806.81 | 1742.53 | 1314.09 | 381.36 | 255.2 | 157.64 | 171.89 | 80.81 | 374.46 | 1057.96 | 853.15 |
| 1953 | 1103.36 | 955.29 | 1459.06 | 1286.63 | 1400.87 | 690.92 | 132.78 | 97.8 | 77.85 | 67.37 | 176.95 | 537.34 | 665.52 |
| 1954 | 328.39 | 1018.9 | 1356.38 | 1240.47 | 1244.21 | 519.41 | 128.47 | 82.46 | 106.21 | 156.6 | 426.63 | 803.93 | 617.67 |
| 1955 | 849.98 | 637.56 | 2213.11 | 877.54 | 393.96 | 252.81 | 94.76 | 352.9 | 132.68 | 1351.87 | 1250.57 | 457.55 | 738.77 |
| 1956 | 315.54 | 937.8 | 2216.4 | 2353.33 | 1137.98 | 553.69 | 532.54 | 425.85 | 384.53 | 334.22 | 691.31 | 1269.88 | 929.42 |
| 1957 | 808.21 | 709.85 | 1161.73 | 2229.77 | 692.21 | 251.21 | 158.25 | 94.14 | 83.09 | 100.38 | 196.35 | 899.65 | 615.4 |
| 1958 | 640.42 | 388.25 | 1403.61 | 3237.48 | 1407.72 | 566.49 | 455.51 | 293.31 | 272.84 | 321.58 | 569.93 | 411.78 | 830.74 |
| 1959 | 962.96 | 903.01 | 1256.45 | 1755.84 | 700.07 | 201.31 | 125.18 | 83.32 | 104.25 | 421.67 | 1116.82 | 1578.99 | 767.49 |
| 1960 | 1000.78 | 1066.38 | 607.26 | 2732.21 | 1486.37 | 1072.55 | 294.45 | 203.46 | 465.65 | 194.84 | 234.9 | 164.28 | 793.59 |
| 1961 | 155.38 | 1286.2 | 1863.53 | 2226.19 | 1115.23 | 565.3 | 264.46 | 239.92 | 144.46 | 75.77 | 204.73 | 291.18 | 702.7 |
| 1962 | 619.78 | 396.55 | 1533.41 | 2399.02 | 498.1 | 158.13 | 69.35 | 77.56 | 69.54 | 383.4 | 591.52 | 416.81 | 601.1 |
| 1963 | 394.61 | 292.37 | 2200.23 | 1148.07 | 738.62 | 370.59 | 138.35 | 86.05 | 71.33 | 48.45 | 132 | 406.76 | 502.29 |
| 1964 | 917.84 | 510.58 | 2993.97 | 1451.62 | 875.14 | 177.78 | 92.93 | 79.8 | 38.85 | 45.51 | 47.37 | 164.92 | 616.36 |
| 1965 | 378.9 | 879.55 | 706.37 | 1312.87 | 627.14 | 205.34 | 67.68 | 80.36 | 95.93 | 218.81 | 286.71 | 396.26 | 437.99 |
| 1966 | 431.42 | 1057.24 | 1730.53 | 797.03 | 1250.06 | 362.67 | 94.3 | 75.41 | 91.78 | 108.43 | 287.7 | 660.06 | 578.89 |
| 1967 | 418.63 | 613.97 | 1549.21 | 1373.47 | 1320.58 | 392.46 | 295 | 387.2 | 238.08 | 596.62 | 1050.94 | 946.52 | 765.22 |
| 1968 | 342.18 | 813.58 | 1222.49 | 731.24 | 1054.21 | 1106.25 | 372.97 | 115.63 | 240.89 | 141.09 | 992.42 | 755.7 | 657.39 |
| 1969 | 514.55 | 587.48 | 605.17 | 1419.81 | 779.54 | 458.18 | 283.84 | 315.85 | 97.6 | 92.42 | 649.8 | 701.8 | 542.17 |
| 1970 | 348.71 | 1270.32 | 1003.06 | 2718.72 | 860.65 | 319.75 | 272.9 | 168.71 | 159.81 | 413.73 | 1131.26 | 783.28 | 787.58 |
| 1971 | 476.5 | 1234.12 | 2021.47 | 1513.83 | 905.6 | 239.05 | 124.44 | 184.17 | 179.59 | 155.34 | 238.73 | 1130.4 | 700.27 |
| 1972 | 982.97 | 449.43 | 2262.62 | 1906.11 | 1433.94 | 3160.65 | 1102.26 | 222.26 | 129.31 | 136.99 | 1278.93 | 2023.66 | 1257.43 |
| 1973 | 951.27 | 1106.69 | 1429.1 | 1512.22 | 1207.95 | 695.37 | 421.3 | 292.48 | 268.17 | 250.65 | 500.78 | 1813.11 | 870.76 |
| 1974 | 1378.67 | 975.01 | 1366.43 | 1898.28 | 855.26 | 365.15 | 461.16 | 169.34 | 456.7 | 239.34 | 586.69 | 1141.36 | 824.45 |
| 1975 | 1120.26 | 1716.82 | 1492.95 | 918.04 | 1092.49 | 859.61 | 324.83 | 174.12 | 1580.65 | 1300.48 | 812.13 | 804.57 | 1016.41 |
| 1976 | 931.54 | 2160.98 | 1422.43 | 882.26 | 775.7 | 813.17 | 520.78 | 437.6 | 232.9 | 1444.81 | 710.47 | 522.4 | 904.59 |
| 1977 | 239.11 | 571.46 | 2608.18 | 1681.37 | 609.87 | 239.7 | 393.29 | 290.42 | 958.04 | 1777.3 | 1544.31 | 1761.23 | 1056.19 |
| 1978 | 1703.5 | 678.09 | 2157.39 | 2024.85 | 1487.56 | 541.14 | 194.16 | 280.32 | 233.44 | 254.36 | 283.02 | 663.71 | 875.13 |
| 1979 | 1906.37 | 723.2 | 2873.72 | 1338.83 | 839.19 | 456.14 | 188.67 | 249.87 | 404.23 | 799.73 | 978.45 | 827.4 | 965.48 |
| 1980 | 459.57 | 212.37 | 1476.81 | 2057.8 | 757.15 | 270.52 | 217.8 | 149.29 | 85.43 | 99.8 | 216.42 | 371.56 | 531.21 |
| 1981 | 127.7 | 2212.16 | 686.28 | 729.63 | 1000.32 | 639.59 | 310.14 | 165.86 | 197.57 | 568.43 | 791.18 | 525.05 | 662.83 |
| 1982 | 569.54 | 1014.86 | 1784.88 | 1586.79 | 531.54 | 1367.52 | 403.67 | 164.28 | 104.08 | 97.76 | 223.27 | 471.12 | 693.28 |
| 1983 | 344.37 | 859.32 | 1022.43 | 2446.59 | 1634.44 | 653.4 | 321.75 | 127.21 | 83.55 | 114.63 | 407.2 | 1802.61 | 818.13 |
| 1984 | 326.81 | 2083.94 | 956.38 | 2562.03 | 1604.48 | 1052.92 | 721.52 | 567.03 | 184.83 | 135.51 | 333.01 | 1219.55 | 979 |
| 1985 | 619.69 | 704.89 | 1238 | 991.76 | 409.98 | 334.93 | 197.6 | 151.36 | 243.2 | 297.09 | 1123.96 | 1030.74 | 611.93 |
| 1986 | 671.36 | 1170 | 2101.58 | 1199.41 | 568.96 | 759.08 | 386.74 | 410.26 | 156.05 | 381.96 | 1283.95 | 1266.59 | 863 |
| 1987 | 533.09 | 316.24 | 1258.74 | 1853.25 | 497.92 | 315.24 | 424.7 | 140.94 | 635.41 | 404.32 | 509.52 | 874.72 | 647.01 |
| 1988 | 421.92 | 988.85 | 1076.5 | 730.77 | 1165.84 | 262.2 | 143.07 | 156.86 | 241.8 | 159.88 | 625.2 | 357.25 | 527.51 |
| 1989 | 399.36 | 521.74 | 782.92 | 1323.91 | 1980.82 | 1361.58 | 496.48 | 167.87 | 187.01 | 480.58 | 716.14 | 297.42 | 726.32 |
| 1990 | 801.28 | 1875.9 | 833.34 | 1134.28 | 1132.59 | 523.75 | 616.1 | 417.19 | 357.73 | 1497.91 | 1067.08 | 1558.07 | 984.6 |
| 1991 | 1254.63 | 1073.11 | 1490.57 | 1075.2 | 607.32 | 153.56 | 91.45 | 79.12 | 76.52 | 113.45 | 239.82 | 565.52 | 568.36 |
| 1992 | 629.82 | 469.38 | 1275.64 | 1376.11 | 672.57 | 505.41 | 519.6 | 587.45 | 488.44 | 502.95 | 1208 | 873.08 | 759.04 |
| 1993 | -9999 | -9999 | -9999 | -9999 | -9999 | -9999 | -9999 | -9999 | -9999 | -9999 | -9999 | -9999 | -9999 |
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| Avg | 744.17 | 915.04 | 1549.68 | 1620.92 | 1017.23 | 585.89 | 307.17 | 214.77 | 243.83 | 368.44 | 620.52 | 813.98 | 750.14 |
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| Std Dev | 458.17 |
483.87 |
598.17 |
684.8 |
434.26 |
466.94 |
196.46 |
126.76 |
249.58 |
400.29 |
404.72 |
462.68 |
170.43 |
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| | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Avg Annual |
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