Results
| Country: | U.S.A.
| | Station: | MCGREGOR, IA | | River: | MISSISSIPPI RIVER | | Area: | 174814.64 | | Lat: | 43.02 | | Lon: | -91.17 | | Source: | USGS | | PointID: | 5389500 | | Area Units: | km2 | | Discharge Units: | m3/sec | | Starting Year: | 1936 | | Ending Year: | 1993 | | Total Years: | 58 | | Total Usable Years: | 57 | |
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| Year | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Avg Annual |
|---|
| 1936 | -9999 | -9999 | -9999 | -9999 | -9999 | -9999 | -9999 | -9999 | 359.34 | 279.59 | 310.88 | 269.19 | -9999 |
| 1937 | 317.63 | 318.81 | 892.44 | 1074.63 | 1318.48 | 868.1 | 405.4 | 376.8 | 321.87 | 300.09 | 307.72 | 275.47 | 564.79 |
| 1938 | 269.44 | 458.05 | 924.5 | 1188.56 | 2063.21 | 1884.5 | 996.85 | 683.72 | 1605.1 | 553.73 | 989.77 | 517.38 | 1011.23 |
| 1939 | 554.83 | 486.34 | 996.3 | 2117.45 | 1084.27 | 1117.39 | 637.95 | 420.55 | 402.38 | 360.47 | 367.65 | 296.49 | 736.84 |
| 1940 | 217.04 | 281.31 | 373.6 | 1298.9 | 915.37 | 952.16 | 359.83 | 418.63 | 301.63 | 383.31 | 480.62 | 446.68 | 535.76 |
| 1941 | 450.7 | 377.02 | 734.96 | 2149.64 | 1262.57 | 1268.6 | 599.96 | 358.7 | 1532.7 | 1253.62 | 1153.35 | 604.52 | 978.86 |
| 1942 | 470.24 | 487.96 | 942.59 | 1194.51 | 1486.55 | 2278.29 | 1063.53 | 786.12 | 1435.11 | 1164.1 | 779.19 | 523.04 | 1050.94 |
| 1943 | 644.99 | 496.46 | 907.06 | 2519.55 | 1246.86 | 2758.08 | 2070.89 | 895.91 | 677.63 | 577.94 | 663 | 607.08 | 1172.12 |
| 1944 | 570.18 | 562.63 | 880.75 | 1324.01 | 2479.38 | 2800.93 | 1828.18 | 767.21 | 624.2 | 541.04 | 559.64 | 502.58 | 1120.06 |
| 1945 | 490.61 | 449.53 | 1892.76 | 2306.51 | 1562.82 | 1958.78 | 1197.72 | 906.69 | 782.12 | 665.45 | 694.8 | 617.77 | 1127.13 |
| 1946 | 672.85 | 584.64 | 1940.72 | 1687.79 | 726.38 | 1333.73 | 1511.76 | 466.23 | 673 | 877.64 | 1100.78 | 623.43 | 1016.58 |
| 1947 | 592.01 | 535.39 | 784.65 | 2007.86 | 2094.73 | 1484.28 | 1070.29 | 501.3 | 508.76 | 469.51 | 528.58 | 476.09 | 921.12 |
| 1948 | 411.42 | 465.77 | 1302.76 | 2099.14 | 1326.88 | 464.59 | 363.65 | 448.23 | 333.73 | 305.2 | 373.68 | 342.12 | 686.43 |
| 1949 | 354.78 | 358.01 | 1023.16 | 1801.43 | 868.42 | 483.47 | 706.1 | 477.74 | 352.95 | 470.98 | 460.62 | 398.08 | 646.31 |
| 1950 | 379.36 | 399.57 | 1060.79 | 2376.36 | 2818.82 | 1488.06 | 747.29 | 519.66 | 406.07 | 473.35 | 396.72 | 421.01 | 957.26 |
| 1951 | 406.21 | 445.59 | 719.53 | 3216.34 | 2291.03 | 1362.24 | 2023.66 | 943.23 | 1452 | 1258.37 | 1209.99 | 947.43 | 1356.3 |
| 1952 | 744.65 | 676.48 | 922.59 | 4021.77 | 2170.09 | 1086.81 | 1632.61 | 1625.94 | 782.59 | 446.86 | 464.02 | 479.56 | 1254.5 |
| 1953 | 462.75 | 472.39 | 1155.97 | 1965.01 | 1602.38 | 1809.27 | 1912.49 | 1895.41 | 754.46 | 494.82 | 552.84 | 565.06 | 1136.9 |
| 1954 | 503.13 | 586.06 | 838.46 | 1306.83 | 2843.03 | 1674.86 | 1570.68 | 611.01 | 769.75 | 1069.01 | 682.72 | 590 | 1087.13 |
| 1955 | 485.86 | 479.16 | 940.4 | 1692.22 | 700.71 | 996 | 829.96 | 869.97 | 497.72 | 488.24 | 503.76 | 483.4 | 747.28 |
| 1956 | 410.05 | 411.18 | 598.13 | 2370.98 | 1071.94 | 968.91 | 779.36 | 925.87 | 439.95 | 353.78 | 557.75 | 413.98 | 775.16 |
| 1957 | 384.75 | 360.84 | 752.96 | 1202.15 | 931.08 | 1088.6 | 2044.67 | 977.58 | 935.4 | 640.51 | 763.62 | 558.12 | 886.69 |
| 1958 | 457.91 | 439.32 | 709.2 | 1153.63 | 595.48 | 741.15 | 912.08 | 364.1 | 533.68 | 361.42 | 472.52 | 328.02 | 589.04 |
| 1959 | 289.2 | 293.28 | 704.36 | 908.69 | 882.39 | 827.33 | 730.67 | 560.82 | 952.4 | 926.88 | 645.44 | 550.9 | 689.36 |
| 1960 | 588.54 | 413.04 | 547.07 | 1703.36 | 2132.36 | 1553.75 | 700.53 | 441.75 | 814.77 | 432.15 | 640.15 | 462.94 | 869.2 |
| 1961 | 360.9 | 391.08 | 1133.32 | 1521.28 | 1478.06 | 757.2 | 413.76 | 398.72 | 359.19 | 429.96 | 580.22 | 419.82 | 686.96 |
| 1962 | 362.46 | 361.24 | 683.44 | 2484.91 | 1716.65 | 1873.45 | 1092.31 | 827.5 | 1168.74 | 750.4 | 574.65 | 461.29 | 1029.75 |
| 1963 | 381.37 | 363.97 | 904.87 | 1299.37 | 1201.92 | 1093.79 | 534.28 | 594.2 | 442.31 | 397.81 | 394.36 | 349.49 | 663.15 |
| 1964 | 359.99 | 369.39 | 451.79 | 940.69 | 1642.11 | 561.71 | 399.07 | 292.65 | 817.13 | 515 | 515.65 | 365.75 | 602.58 |
| 1965 | 364.38 | 403.82 | 866.96 | 4667.77 | 3282.12 | 2213.45 | 905.32 | 569.81 | 832.61 | 1416.95 | 869.71 | 1117.7 | 1459.22 |
| 1966 | 742.18 | 1260.61 | 2015.8 | 2448.67 | 1663.03 | 998.65 | 647.36 | 672.12 | 514.43 | 634.39 | 516.79 | 457.64 | 1047.64 |
| 1967 | 509.8 | 555.01 | 1005.71 | 3330.17 | 1211.6 | 1574.8 | 1278.38 | 466.32 | 406.25 | 386.39 | 416.92 | 359.99 | 958.45 |
| 1968 | 340.44 | 357.09 | 582.33 | 896.14 | 1308.98 | 1686.75 | 1994.34 | 892.72 | 885.76 | 1661.11 | 1524.3 | 726.74 | 1071.39 |
| 1969 | 684.63 | 771.13 | 1135.97 | 4024.98 | 2554.28 | 1031.59 | 1239.19 | 545.33 | 447.88 | 594.66 | 609.1 | 551.45 | 1182.52 |
| 1970 | 467.69 | 462.48 | 715.14 | 1318.53 | 1591.14 | 1356.01 | 612.1 | 403.07 | 442.12 | 693.86 | 1339.49 | 855.81 | 854.79 |
| 1971 | 575.93 | 576.55 | 1194.25 | 3026.33 | 1535.42 | 1380.45 | 914.27 | 536.84 | 492.34 | 720.26 | 1493.44 | 962.14 | 1117.35 |
| 1972 | 651.29 | 583.92 | 1327.34 | 2487.84 | 2093.91 | 1204.51 | 1017.22 | 1960.63 | 1228.58 | 1464.35 | 1527.14 | 689.66 | 1353.03 |
| 1973 | 980.59 | 783.27 | 2681.8 | 2348.71 | 2401.19 | 1668.63 | 657.14 | 826.31 | 702.92 | 1246.59 | 1023.75 | 832.25 | 1346.1 |
| 1974 | 643.34 | 631.57 | 1172.32 | 2101.59 | 1805.71 | 2132.84 | 738 | 649.46 | 515.94 | 470.7 | 714.63 | 505.41 | 1006.79 |
| 1975 | 486.87 | 546.52 | 721.26 | 1754.99 | 3375.84 | 1635.87 | 1700.94 | 708.11 | 688.67 | 500.21 | 872.35 | 772.41 | 1147 |
| 1976 | 586.8 | 814.65 | 1340.58 | 2669.82 | 849.05 | 497.06 | 371.96 | 314.04 | 329.23 | 332.5 | 311.34 | 276.05 | 724.42 |
| 1977 | 261.89 | 297.63 | 716.69 | 823.93 | 516.37 | 563.13 | 543.87 | 372.73 | 897.55 | 1121.26 | 858.38 | 804.93 | 648.2 |
| 1978 | 644.53 | 486.65 | 642.98 | 2272.91 | 1206.76 | 1338.26 | 2264.63 | 953.1 | 1348.74 | 776.89 | 608.06 | 522.49 | 1088.83 |
| 1979 | 453.25 | 473.7 | 1192.33 | 3077.96 | 2990.82 | 1661.83 | 1429.92 | 1093.58 | 1082.28 | 753.87 | 1146.84 | 717.15 | 1339.46 |
| 1980 | 715.69 | 679.12 | 1171.87 | 1762.83 | 697.33 | 1322.88 | 520.76 | 795.8 | 1575.65 | 904.68 | 743.89 | 501.03 | 949.29 |
| 1981 | 466.96 | 632.08 | 754.15 | 1397.63 | 1342.59 | 1102 | 1290.43 | 910.62 | 840.45 | 966.07 | 840.64 | 596.76 | 928.36 |
| 1982 | 521.95 | 500.91 | 1018.59 | 3118.27 | 2540.13 | 1369.03 | 886.5 | 598.86 | 904.35 | 1531.13 | 1836.17 | 1269.33 | 1341.27 |
| 1983 | 1010.83 | 853.45 | 2939.76 | 2702.86 | 2299.07 | 1238.49 | 1778.4 | 858.92 | 1088.13 | 1180.73 | 1222.44 | 1061.8 | 1519.57 |
| 1984 | 821.38 | 1374.45 | 1553.6 | 2572.69 | 2641.15 | 2262.81 | 2073.53 | 782.74 | 691.41 | 1148.12 | 1556.02 | 941.31 | 1534.93 |
| 1985 | 788.58 | 807.64 | 2004.66 | 2612.24 | 2206.9 | 1265.3 | 1122.27 | 871.25 | 1349.78 | 2307.65 | 1315.61 | 855.45 | 1458.94 |
| 1986 | 782.83 | 674.55 | 1344.69 | 3729.35 | 3339.67 | 1702.61 | 1765.15 | 1556.06 | 2064.03 | 3245.4 | 1360.82 | 1181.18 | 1895.53 |
| 1987 | 883.49 | 905.64 | 1024.53 | 1078.12 | 738.8 | 751.25 | 733.96 | 763.92 | 548.12 | 560.77 | 660.26 | 719.25 | 780.68 |
| 1988 | 485.04 | 476.51 | 969.54 | 1256.52 | 772.51 | 380.02 | 317.58 | 392.14 | 462.69 | 476.18 | 577.95 | 466.77 | 586.12 |
| 1989 | 413.61 | 464.9 | 899.66 | 1907.62 | 1123.45 | 966.65 | 524.23 | 417.5 | 525.75 | 418 | 454.02 | 346.47 | 705.15 |
| 1990 | 357.52 | 355.88 | 1371.73 | 786.74 | 1394.29 | 1714.78 | 1180.27 | 1144.83 | 846.21 | 759.9 | 656.39 | 417.36 | 915.49 |
| 1991 | 340.44 | 360.03 | 939.67 | 2186.17 | 2403.75 | 2304.91 | 1596.44 | 1025.99 | 1186.77 | 805.85 | 1713.46 | 1676.37 | 1378.32 |
| 1992 | 915.64 | 793.27 | 2272.76 | 2139.07 | 1563.19 | 845.55 | 1313.54 | 723 | 1110.22 | 896.1 | 1173.46 | 742.18 | 1207.33 |
| 1993 | 583.24 | 555.72 | 736.15 | 3200.01 | 2687.19 | 3187.64 | 4026.86 | 2390.87 | 1753.39 | -9999 | -9999 | -9999 | -9999 |
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| Avg | 527.63 | 539.71 | 1088.28 | 2081.3 | 1695.62 | 1384.1 | 1132.98 | 764.09 | 806.88 | 793.26 | 801.19 | 610.94 | 1007.96 |
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| Std Dev | 183.34 |
211.29 |
512.09 |
879.3 |
757.03 |
604.73 |
664.85 |
418.89 |
412.38 |
521.41 |
392.81 |
274.01 |
293.79 |
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| | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Avg Annual |
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