Country= U.S.A. Station= WATERLOO, IA River= CEDAR RIVER Area= 13327.35 Lat= 42.49 Lon= -92.33 Source= USGS PointID= 5464000 Area Units= km2 Discharge Units= m3/sec Starting Year= 1932 Ending Year= 1993 Total Years= 62 Total Usable Years= 61 Year Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Avg Annual 1932 471.33 419.87 552.18 300.15 170.07 223.17 233.64 438.56 193.26 316.89 375.77 481.57 348.04 1933 758.44 1050.36 778.81 413.33 267.7 152.07 181.09 137.56 382.52 113.28 101.41 121.75 371.53 1934 158.21 234.51 725.83 336.09 351 630.19 185.13 160.38 124.09 210.46 115.4 143.37 281.22 1935 224.03 200.07 363.24 346.73 208.02 117.52 176.27 173.1 350.71 97.76 115.66 124.02 208.09 1936 885.05 1591.32 593.74 2292.54 294.91 172.3 129.22 258.19 153.44 264.09 151.23 306.3 591.03 1937 660.88 966.52 756.61 736.53 695.43 227.77 206.67 224.42 215.62 154.57 202.19 179.84 435.59 1938 217.68 164.24 192.41 825.87 243.3 273.08 310.32 435.04 94.81 78.66 90.48 118.81 253.73 1939 182.16 456.09 1456.77 488.77 218.8 222.18 135.96 177.18 182.48 111.74 87.7 105.39 318.77 1940 302.28 533.34 582.33 388.98 190.63 141.42 285.32 443.11 174.29 93.09 129.89 207.34 289.34 1941 339.43 245.63 354.35 378.46 139.04 89.43 429.92 204.03 89.28 90.83 80.04 184.65 218.76 1942 913.73 523.26 1125.83 1011.67 264.99 258.92 191.12 175.9 134.99 117.07 123.97 202.5 420.33 1943 577.45 993.22 709.39 812.13 449.33 303.12 273.43 171.35 108.61 87.35 102.05 120.95 392.37 1944 392.45 469.87 1110.12 1836.26 908.43 224.82 161.86 154.91 173.05 170.5 130.72 183.48 493.04 1945 233.1 344.09 560.68 267.3 473.16 133.23 169.61 229.71 178.56 112.01 122.69 260.99 257.09 1946 1250.79 632.18 576.66 662.81 463.21 362.76 213.07 178.18 173.72 225.13 185.64 151.43 422.97 1947 364.82 572.31 987.44 953.62 439.37 252.21 262.32 222.22 167.56 229.33 788.72 1212.24 537.68 1948 841.75 1311.96 1465.82 1549.6 338.98 261.17 266.56 249.84 133.18 190.87 196.46 1573.69 698.32 1949 877.46 958.02 722.81 525.75 537.47 336.31 311.39 326.49 527.55 190.62 177.68 193.17 473.73 1950 193.5 200.82 437.56 321.84 167.22 174.93 161.42 130.45 208.66 182 166.07 213.5 213.16 1951 348.58 292.99 321.08 530 221.88 118.8 132.24 163.22 87.83 94.68 142.25 258.33 225.99 1952 417.86 480.71 1267.69 884.62 281.11 233.95 113.12 115.65 122.77 106.06 91.54 127.05 353.51 1953 335.33 607.4 994.38 630.71 805.01 179.64 220.43 174.66 167.32 506.72 141.66 551.72 442.92 1954 720.26 348.99 311.98 279.47 150.86 102.38 76.19 67.93 60.81 49.5 50.65 76.12 191.26 1955 166.28 312.09 199.14 363.67 182.33 127.23 116.46 155.09 256.62 145.95 100.72 119.66 187.1 1956 114.8 480.22 518.84 606.08 305.78 123.35 167.49 109.51 98.71 243.15 126.94 136.25 252.59 1957 322.1 304.55 353.19 703.39 533.95 415.44 237.22 208.57 129.99 329.1 240.1 820.65 383.19 1958 483.31 744.74 1122.45 1040.37 514.18 219.65 295.99 163.61 97.75 88.53 76.54 103.06 412.51 1959 138.17 764.94 1049.37 696.32 239.59 513.04 179.41 121.52 170.96 210.84 377.37 312.3 397.82 1960 442.11 1342.32 1070.02 1347.32 343.71 178.29 167.03 143.12 102.69 129.35 95.41 111.76 456.09 1961 138.89 206.63 1138.98 1163.92 684.81 262.2 256.99 192.25 323.53 93.11 92.37 256.54 400.85 1962 611.19 547.43 1195.16 1157.88 339.17 189.92 141.12 113.37 101.13 145.94 129.92 180.37 404.38 1963 329.54 985.43 727.84 370.62 375.18 394.21 722.36 213.16 108.7 153.29 103.51 268.73 396.05 1964 946.88 1324.16 1558.17 1390.36 1128.39 213.7 460.47 653.76 299.95 559.73 254.21 533.18 776.91 1965 863.94 1028.92 1138.43 983.92 280.09 296.27 268.2 204.93 137.91 242.1 142.82 196.8 482.03 1966 499.21 902.91 2035.72 439.63 496.19 754.74 314.38 314.67 139.4 188.5 281.91 217.56 548.74 1967 996.97 724.41 559.4 224.54 238 300.65 342.75 266.21 255.66 114.67 162.64 305.6 374.29 1968 589.27 327.05 339.13 292.09 202.8 208.08 186.51 124.53 73.27 83.2 134.27 197.55 229.81 1969 284.48 431.83 531.72 496.02 627.5 307.51 140.49 424.01 372.44 181.12 154.12 231.81 348.59 1970 328.33 487.05 615.76 1207.25 243.82 287.38 120.44 231.2 236.18 85.3 161.85 169.68 347.85 1971 588.45 709.44 1385.16 798.16 579.31 215.03 227.52 478.16 283.13 169.24 169.91 585.02 515.71 1972 958.3 1134.24 564.51 403.61 224.41 196.91 212.91 139.37 99.35 75.75 101.29 274.36 365.42 1973 802.1 1349.41 788.13 1317.68 558.85 645.91 304.96 296.62 153.43 148.08 110.18 182.17 554.79 1974 423.41 923.24 598.22 653.27 220.53 198.54 140.04 276.91 247.33 100.42 106.08 202.74 340.89 1975 628.64 893.7 1676.55 1570.56 741.54 514.05 411.18 438.36 242.34 380.73 270.56 265.78 669.5 1976 528.43 626.59 601.51 529.75 500.48 575.83 302.05 153.77 153.25 331.7 265.5 961.13 460.83 1977 991.92 475.22 1030.83 842.75 183.62 135.07 104.45 162.64 141.61 135.04 339.37 266.65 400.76 1978 629.92 1357.8 663.81 350.48 552.28 187.61 114.99 172.49 89.87 66.97 65.5 132.25 365.33 1979 284.31 623.08 1315.19 655.92 614.33 196.02 182.98 139.49 192.74 232.03 208.21 238.38 406.89 1980 313.88 588.6 1307.06 1420.19 345.92 342.14 189.42 100.13 78.29 87.82 88.02 118.33 414.98 1981 101.05 376.44 405.08 518.97 122.49 112.82 71.8 90.77 74.87 54.2 60.36 88.66 173.13 1982 759.79 904.73 550.17 467.7 424.15 296.24 228.43 211.49 110.9 112.9 118.3 347.01 377.65 1983 718.98 1148.15 1298.93 1349.87 373.49 166.47 136.78 90.5 91 81.15 117.13 773.51 528.83 1984 758.53 859.47 1090.02 858.29 696.18 276.93 182.28 528.3 118.75 91.24 123.02 146.78 477.48 1985 171.03 620.7 305.7 175.32 155.54 85.89 95.11 181.6 175.24 139.58 359.55 668.37 261.14 1986 336.81 631.51 384.86 214.03 84.7 74.27 52.4 59.55 88 56.6 121.73 573.37 223.15 1987 1208.41 1156.75 1184.84 690.26 200.33 166.8 196.01 79.32 86.83 54.1 60.06 78.1 430.15 1988 210.59 419.58 439.46 307.5 249.73 68.48 51.03 52.71 143.09 115.17 98.68 105.86 188.49 1989 143.89 127.77 354.67 546.06 256.04 197.28 400.64 249.24 154.78 536.27 183.32 452.52 300.21 1990 886.69 807.14 941.59 576.92 180.78 114.89 74.5 85.58 79.61 187.45 195 160.93 357.59 1991 521.96 1138.14 1173.69 666.11 626.17 305.27 405.71 522.13 281.84 89.76 89.95 122.84 495.3 1992 389.16 711.93 850.33 479.12 150.63 226.61 165.68 272.88 408.49 379.58 354.88 986.25 447.96 1993 -9999 -9999 -9999 -9999 -9999 -9999 -9999 -9999 -9999 -9999 -9999 -9999 -9999 Avg 512.76 690.1 819.86 731.95 377.98 250.53 216.3 220.22 173.85 170.7 165.76 311.32 386.78 Std Dev 293.51 357.28 408.47 438.98 214.99 143.12 114.86 128.36 94.71 114.46 113.89 291.66 128.11