Country= U.S.A. Station= KEOSAUQUA, IA River= DES MOINES RIVER Area= 36356.27 Lat= 40.72 Lon= -91.96 Source= USGS PointID= 5490500 Area Units= km2 Discharge Units= m3/sec Starting Year= 1956 Ending Year= 1993 Total Years= 38 Total Usable Years= 23 Year Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Avg Annual 1956 321.81 760.75 975.2 878.58 555.84 355.94 478.47 344.74 389.26 498.56 332.63 494.27 532.17 1957 -9999 -9999 -9999 -9999 -9999 -9999 -9999 -9999 -9999 -9999 -9999 -9999 -9999 1958 -9999 -9999 -9999 -9999 -9999 -9999 -9999 -9999 -9999 -9999 -9999 -9999 -9999 1959 -9999 -9999 -9999 -9999 -9999 -9999 -9999 -9999 -9999 -9999 -9999 -9999 -9999 1960 -9999 -9999 -9999 -9999 -9999 -9999 -9999 -9999 -9999 -9999 -9999 -9999 -9999 1961 -9999 -9999 -9999 -9999 -9999 -9999 -9999 -9999 -9999 -9999 -9999 -9999 -9999 1962 -9999 -9999 -9999 -9999 -9999 -9999 -9999 -9999 -9999 -9999 -9999 -9999 -9999 1963 -9999 -9999 -9999 -9999 -9999 -9999 -9999 -9999 -9999 -9999 -9999 -9999 -9999 1964 -9999 -9999 -9999 -9999 -9999 -9999 -9999 -9999 -9999 -9999 -9999 -9999 -9999 1965 -9999 -9999 -9999 -9999 -9999 -9999 -9999 -9999 -9999 -9999 -9999 -9999 -9999 1966 1011.19 1670.91 2141.04 845.64 860.29 776.92 483.03 625.26 442.22 465.77 666.02 577.48 880.48 1967 1444.08 1090.2 804.29 504.42 438.46 502.82 694.77 528.25 628.92 397.9 502.94 833.25 697.53 1968 922.13 561.46 890.34 599.94 428.87 398.99 360.63 346.93 314.32 280.06 297.33 388.22 482.44 1969 494.45 591.72 706.74 937.58 654.21 436.84 395.07 448.78 531.6 417.9 350.75 410.78 531.37 1970 572.19 733.81 1134.69 1237.17 430.14 530.38 422.65 582.87 427.59 358.35 476.29 453.8 613.33 1971 879.47 1017.19 2550.89 875.13 940.4 505.46 636.4 821.01 468.93 390.32 350.09 849.05 857.03 1972 1300.3 1313.62 992.56 682.72 482.85 540.48 596.67 412.97 337.26 305.82 314.89 881.12 680.11 1973 1299.48 1940.73 1318.84 2151.62 1122.81 1227.92 580.04 557.02 429.85 366.75 360.29 492.9 987.35 1974 1026.35 1645.32 760.08 1175.44 526.42 473.65 363.74 457.46 462.89 325.55 312.9 517.93 670.64 1975 1077.32 1487.75 1977.53 2215.14 840.19 783.63 738.43 823.11 550.01 793.52 662.62 624.8 1047.84 1976 869.61 1010.04 1012.84 892.55 975.93 843.94 611.1 444.49 403.23 448.78 478.46 1158.35 762.44 1977 943.69 658.88 1390.27 1146.93 483.02 376.91 324.18 376.25 387.85 326.92 692.92 551.18 638.25 1978 1153.69 1474.41 1337.2 733.69 1046.18 561.53 388.58 587.62 375.96 308.66 284.84 309.22 713.46 1979 567.89 981.59 1403.15 1225.28 805.66 462.51 453.8 421.83 494.51 517.47 484.79 503.77 693.52 1980 554.01 739.17 1776.12 2105.37 1021.15 640.91 458.28 399.64 353.87 292.12 286.66 286.82 742.84 1981 283.17 636.91 476.82 596.73 301.9 288.47 278.63 273.36 266.42 196.23 152.25 218.25 330.76 1982 -9999 -9999 -9999 -9999 -9999 -9999 -9999 -9999 -9999 -9999 -9999 -9999 -9999 1983 -9999 -9999 -9999 -9999 -9999 -9999 -9999 -9999 -9999 -9999 -9999 -9999 -9999 1984 1054.58 1097.92 1366.98 1001.76 841.38 508.38 468.33 765.66 436.27 304 303.18 362.09 709.21 1985 366.48 814.32 611.37 447.88 349.4 292.49 278.18 383.38 386.9 280.5 361.37 559.4 427.64 1986 532.82 694.58 624.98 384.73 280.35 253.27 221.04 168.86 190.74 179.29 280.81 578.31 365.82 1987 -9999 -9999 -9999 -9999 -9999 -9999 -9999 -9999 -9999 -9999 -9999 -9999 -9999 1988 -9999 -9999 -9999 -9999 -9999 -9999 -9999 -9999 -9999 -9999 -9999 -9999 -9999 1989 312.31 288.43 446.31 759.84 404.29 703.3 977.94 512.26 409.75 548.89 510.37 863.3 561.42 1990 -9999 -9999 -9999 -9999 -9999 -9999 -9999 -9999 -9999 -9999 -9999 -9999 -9999 1991 -9999 -9999 -9999 -9999 -9999 -9999 -9999 -9999 -9999 -9999 -9999 -9999 -9999 1992 574.2 789.65 829.69 587.2 359.42 380.86 373.78 387.85 425.98 410.41 611.65 860.01 549.23 1993 -9999 -9999 -9999 -9999 -9999 -9999 -9999 -9999 -9999 -9999 -9999 -9999 -9999 Avg 798.24 999.97 1160.36 999.33 643.14 538.44 481.08 484.98 414.29 382.44 412.46 580.65 657.95 Std Dev 345.59 416.31 542.64 518.08 266.63 219.04 172.93 163.6 92.18 129.98 144.26 230.33 179.47