Country= U.S.A. Station= OTTUMWA, IA River= DES MOINES RIVER Area= 34636.61 Lat= 41.01 Lon= -92.41 Source= USGS PointID= 5489500 Area Units= km2 Discharge Units= m3/sec Starting Year= 1928 Ending Year= 1993 Total Years= 66 Total Usable Years= 63 Year Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Avg Annual 1928 69.33 77.45 364.17 558.03 718.62 199.31 307.71 990.75 871.13 932.63 267.44 154.96 459.29 1929 203.75 397.25 614.3 404.04 211.88 146.41 209.41 278.4 249.08 685.09 203.56 185.97 315.76 1930 303.54 502.12 498.47 724.63 246.38 137.91 132.56 136.73 84.57 108.32 90.5 138.76 258.71 1931 226.84 203.88 184.71 184.56 135.92 66.38 51.92 77.67 50.93 37.29 32.42 30.87 106.95 1932 46.86 49.99 80.65 58.42 35.26 92.02 89.31 207.23 314.56 279.93 213.33 184.64 137.68 1933 198.69 562.09 459.56 408.05 187.78 84.33 71.5 77.42 146.47 65.81 51.59 44.57 196.49 1934 39.13 38.39 69.5 54.77 52.42 134.12 93.63 93.35 56.58 45.57 36.59 32.64 62.22 1935 35.76 52.3 93.7 59.24 48.01 33.09 55.23 106.37 411.97 178.45 68.98 59.06 100.18 1936 124.65 313.23 296.18 262.6 138.06 76.46 61.53 163.85 68.58 80.93 59.3 79.4 143.73 1937 88.82 236.23 275.82 553.5 283.15 99.51 118.54 185.34 219.13 261.13 135.68 118.42 214.61 1938 109.87 100.83 81.53 71.47 48.6 44.07 56.16 101.72 58.79 62.9 52.83 43.73 69.38 1939 49.28 79.92 266.63 173.01 120.49 129.29 139.19 177.59 164.48 81.81 50.18 44.32 123.02 1940 59.24 161.6 164.58 140.24 75.96 59.84 108.34 149.59 81.15 40.93 33.83 35.2 92.54 1941 55.38 59.38 101.45 98.58 49.59 39.91 85.64 81.47 62.54 53.27 61.58 70.48 68.27 1942 428.2 316.01 638.87 361.78 115.37 98.63 88.9 79.22 69.31 66.33 45.95 47.55 196.34 1943 72.79 106.73 150.04 111.22 83.24 93.71 67.34 53.53 43.62 33.81 29.7 28.54 72.86 1944 53.62 141.4 357.1 578.99 362.4 108.38 232.2 319.93 257.34 188.09 149.85 113.49 238.57 1945 185.4 219.03 147.01 108.4 185.49 65.88 272.65 618.68 456.94 175.77 92.71 119.01 220.58 1946 364.47 307.31 304.1 264.89 214.3 183.17 181.81 371.59 272.88 214.96 114.66 69.45 238.63 1947 78.57 108.69 285.4 408.61 226.41 129.28 109.2 118.26 126.96 496.55 1007.71 866.41 330.17 1948 563.87 458.25 929.35 1505.8 294.93 128.59 129.66 194.21 133.39 189.35 110.91 309.41 412.31 1949 311.51 346.88 247.12 290.78 137.2 84.37 176.43 177.36 358.07 166.06 89.4 66.84 204.34 1950 58.16 53.02 113.89 138.74 69.13 63.29 119.83 82.53 86.3 84.23 100.12 62.16 85.95 1951 59.75 65.16 79.78 219.88 86.18 49.23 44.35 70.15 82.77 118.71 198.88 195.23 105.84 1952 257.48 239.34 374.61 243.53 102.85 99.49 53.9 50.69 53.28 52.74 41.62 38.95 134.04 1953 51.78 149.94 190.16 240.8 134.44 69.35 106.54 162.8 251.24 419.05 133.65 231.39 178.43 1954 364.27 162.59 113.21 80.26 55.85 44.67 41.11 37.01 34.11 31.11 28.2 27.68 85.01 1955 29.01 43.6 35.1 52.14 39.93 30.69 25.97 28.6 70.04 53.41 34.31 28.57 39.28 1956 28.7 75.25 107.53 67.48 188.99 65.23 74.94 59.54 43.71 68.14 46.31 34.43 71.69 1957 37.74 33.67 55.13 147.15 113.71 262.48 151.42 119.43 138.11 258.92 122.3 286.65 143.89 1958 216.57 211.96 376.98 550.39 386.52 233.79 370.79 176.33 94.4 63.06 54.24 47.89 231.91 1959 69.81 261.69 863.67 643.55 274.44 417.8 259.79 215.51 143.15 108.53 154.6 121.15 294.47 1960 161.03 269.77 450.24 618.35 236.16 119.32 189.61 226.44 157.04 212.56 95.17 65.38 233.42 1961 101.74 182.78 223.92 393.06 330.33 132.88 117 94.82 191.99 78.58 52.36 50.31 162.48 1962 67.06 77.43 183.6 463.22 130.29 67.75 61.16 71.85 78.99 64.89 44.99 51.16 113.53 1963 103.05 245.68 340.05 151.34 76.38 68.65 135.57 93.14 48.47 48.75 35.81 45.96 116.07 1964 304.33 473.19 725.83 330.15 617.69 168.65 221.82 502.95 570.78 524.32 279.72 561.37 440.07 1965 404.93 513.25 807.95 580.12 244.44 235.71 282.63 231.13 125.46 136.44 79.5 98.02 311.63 1966 217.66 490.59 788.13 315.05 195.38 345 253.78 306.75 131.6 128.79 89.57 72.18 277.87 1967 351.74 400.58 234.06 99.93 62.4 53.79 86.41 117.09 92.18 51.97 44.11 47.94 136.85 1968 63.97 56.86 66.03 48.2 42.73 52.92 44.82 48.4 47.46 31.65 29.28 36.06 47.36 1969 50.39 71.36 181.88 174.92 102.99 126.7 78.31 171.03 205.25 188.21 138.01 132.54 135.13 1970 207.44 286.17 298.26 581.6 166.7 204.3 114.4 372.14 395.57 111.54 82.42 64.23 240.4 1971 127.3 203.09 261.51 237.56 256.61 91.61 162.55 258.38 302.44 96.84 63.52 133.37 182.9 1972 358.93 616.82 363.3 302.64 122.53 132.06 267.89 95.97 71.26 49.91 44.95 70 208.02 1973 145.28 470.42 402.92 1259.26 568.44 504.04 284.04 211.33 117.58 68.79 55.24 59.03 345.53 1974 99.8 195.03 157.74 250.79 112.58 78.03 69.9 96.27 272.76 127.67 57.53 58.41 131.38 1975 242.29 401.19 282.87 557.75 385.7 166.43 167.1 243.86 158 119.21 76.84 64.8 238.84 1976 165.12 213.87 149.69 119.52 194.89 377.91 226.08 110.48 106.67 121.9 136.52 567.8 207.54 1977 599.04 342.66 451.94 212.03 86.51 59.64 51.8 59.97 84.67 60.04 51.91 128.41 182.39 1978 232.67 382.08 449.27 238.31 201.66 126.27 87.12 90.97 56.88 44.46 37.18 38.61 165.46 1979 98.87 256.84 349.3 168.73 210.97 116.26 138.59 146.06 121.09 127.58 84.56 118.34 161.43 1980 117.35 230.24 404.82 573.37 267.87 122.88 89.02 77.82 55.18 51.34 64.75 62.5 176.43 1981 47.42 108.14 157.37 152.44 61.64 49.13 39.33 42.06 52.96 32.49 36.92 48.41 69.03 1982 168.56 264.11 215.37 193.67 145.65 84.74 119.83 176.06 97.26 60.5 47.09 58.29 135.93 1983 178.7 407.7 673.31 714.15 393.27 176.68 142.37 132.24 92.32 69.39 65 192.61 269.81 1984 332.31 515.66 831.72 1055.15 346.19 156.75 180.05 217.44 105.77 78.61 64.5 64.69 329.07 1985 59.03 89.51 97.32 75.99 49.04 38.1 63.5 141.97 199.49 81.29 92.51 260.7 104.04 1986 353.9 812.77 512.17 186.64 84.19 66.75 55.58 68.78 72.05 45.69 46.69 170.19 206.28 1987 475.45 621.36 644.17 462.15 150.9 96.91 103.82 86.61 95.34 54.54 44.38 41.76 239.78 1988 57.87 203.54 496.28 195.73 146.73 66.35 46.51 42.46 129.31 84.77 58.92 55.78 132.02 1989 52.82 48.5 75.91 82.75 61.03 77.74 133.98 87.4 60.67 46.6 42.1 67.28 69.73 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 98.6 385.64 390.41 257.52 103.12 111.39 95.67 123.43 131.27 150.35 109.99 221.65 181.59 1993 -9999 -9999 -9999 -9999 -9999 -9999 -9999 -9999 -9999 -9999 -9999 -9999 -9999 Avg 172.82 253.52 326.79 330.44 183.79 124.54 130.12 166.8 158.47 140.52 97.86 121.04 183.89 Std Dev 138.69 176.57 226.77 285.04 139.9 91.94 78.32 151.18 143.76 159.32 128.12 142.14 95.51