Overview Realtime Historical Map View

Iowa River At Marshalltown, Ia Historical Data

Historical Data


Streamflow Range


Date Average 2026 2025 2024 2023 2022 2021 2020 2019 2018 2017 2016 2015 2014 2013 2012 2011
01-01 2280.0
01-02 2220.0
01-03 2125.0
01-04 1975.0
01-05 1825.0
01-06 1695.0
01-07 1620.0
01-08 1575.0
01-09 1685.0
01-10 1785.0
01-11 1582.0
01-12 1310.5
01-13 1160.5
01-14 1308.5
01-15 902.0
01-16 877.0
01-17 1950.0
01-18 1850.0
01-19 2210.0
01-20 2110.0
01-21 2270.0
01-30 274.0
01-31 278.0
02-01 294.0
02-02 327.0
02-03 314.0
02-04 298.0
02-05 306.0
02-06 294.0
02-07 270.0
02-08 263.0
02-09 252.0
02-16 241.0
02-17 252.0
02-18 270.0
02-19 234.0
02-20 189.0
02-21 169.0
02-22 161.0
02-23 4520.0
02-24 4520.0
02-25 4100.0
02-26 3850.0
02-27 3460.0
02-28 3320.0
02-29 1796.5
03-01 1729.0
03-02 1633.5
03-03 2795.0
03-04 2596.67
03-05 2341.25
03-06 2217.25
03-07 2107.67
03-08 2297.0
03-09 1783.38
03-10 1734.14
03-11 1575.5
03-12 1558.3
03-13 1359.2
03-14 1274.9
03-15 2295.83
03-16 2105.75
03-17 1844.58
03-18 1725.77
03-19 1659.64
03-20 1627.08
03-21 1860.64
03-22 1384.14
03-23 1609.6
03-24 1558.27
03-25 1581.27
03-26 1542.53
03-27 1469.33
03-28 1418.93
03-29 1425.2
03-30 1425.53
03-31 1454.5
04-01 1470.33
04-02 1414.8
04-03 1413.47
04-04 1599.33
04-05 1874.53
04-06 1821.2
04-07 1644.07
04-08 1474.8
04-09 1296.36
04-10 1295.2
04-11 1327.8
04-12 1402.36
04-13 1422.93
04-14 1455.64
04-15 1479.92
04-16 1780.38
04-17 2016.92
04-18 1868.0
04-19 1903.31
04-20 1806.54
04-21 1841.93
04-22 1855.71
04-23 1831.07
04-24 1968.43
04-25 1852.5
04-26 2085.38
04-27 1951.77
04-28 1796.14
04-29 1748.71
04-30 1733.71
05-01 1825.47
05-02 1788.36
05-03 1776.07
05-04 1941.57
05-05 2253.4
05-06 2343.13
05-07 2197.93
05-08 1948.57
05-09 2102.07
05-10 2125.87
05-11 1960.0
05-12 1736.07
05-13 1663.07
05-14 1667.57
05-15 1686.43
05-16 1649.43
05-17 1627.43
05-18 1717.33
05-19 1806.67
05-20 2015.93
05-21 2256.2
05-22 2347.2
05-23 2203.2
05-24 2039.4
05-25 2269.67
05-26 2615.6
05-27 3812.53
05-28 3868.73
05-29 3779.2
05-30 3778.0
05-31 3990.13
06-01 3263.4
06-02 2808.6
06-03 2453.93
06-04 2142.47
06-05 2213.5
06-06 2367.0
06-07 2174.36
06-08 1831.33
06-09 1678.13
06-10 1819.67
06-11 1832.2
06-12 1822.0
06-13 1709.36
06-14 1594.21
06-15 1578.4
06-16 2263.64
06-17 2250.36
06-18 2597.73
06-19 2561.21
06-20 2747.0
06-21 3075.5
06-22 3330.5
06-23 3527.43
06-24 3407.36
06-25 3397.14
06-26 3213.21
06-27 2933.29
06-28 2880.29
06-29 2870.43
06-30 2917.57
07-01 3067.93
07-02 3744.86
07-03 3192.79
07-04 3221.93
07-05 2625.0
07-06 2361.93
07-07 2495.21
07-08 2062.93
07-09 1861.0
07-10 1555.27
07-11 1401.43
07-12 1407.53
07-13 1412.57
07-14 1173.14
07-15 1101.64
07-16 1026.64
07-17 963.07
07-18 896.64
07-19 820.29
07-20 900.64
07-21 1172.0
07-22 1148.62
07-23 1031.15
07-24 1050.54
07-25 1128.62
07-26 1178.23
07-27 1130.79
07-28 1013.93
07-29 1029.14
07-30 967.57
07-31 1162.86
08-01 1189.58
08-02 878.71
08-03 756.36
08-04 687.5
08-05 668.62
08-06 652.22
08-07 637.15
08-08 649.92
08-09 600.33
08-10 545.25
08-11 854.23
08-12 765.15
08-13 688.92
08-14 453.01
08-15 549.83
08-16 504.7
08-17 473.74
08-18 476.18
08-19 476.85
08-20 441.57
08-21 746.52
08-22 878.82
08-23 785.55
08-24 680.36
08-25 663.13
08-26 624.52
08-27 526.63
08-28 492.51
08-29 861.4
08-30 1390.29
08-31 1775.08
09-01 1279.09
09-02 1135.29
09-03 1072.92
09-04 1208.19
09-05 1136.63
09-06 978.83
09-07 1081.77
09-08 972.44
09-09 1014.93
09-10 956.39
09-11 936.69
09-12 861.91
09-13 810.2
09-14 761.48
09-15 718.26
09-16 709.31
09-17 903.23
09-18 824.01
09-19 783.85
09-20 877.29
09-21 1011.96
09-22 1055.47
09-23 1331.63
09-24 1688.54
09-25 1692.92
09-26 1692.46
09-27 1735.69
09-28 1752.12
09-29 1669.48
09-30 1652.05
10-01 1110.83
10-02 904.52
10-03 1041.54
10-04 1030.75
10-05 1422.55
10-06 1385.7
10-07 1347.64
10-08 1332.19
10-09 1409.76
10-10 1465.62
10-11 1538.66
10-12 1718.31
10-13 1638.98
10-14 1427.7
10-15 1487.08
10-16 844.28
10-17 1145.27
10-18 1042.06
10-19 967.26
10-20 896.98
10-21 610.5
10-22 774.44
10-23 779.96
10-24 932.29
10-25 912.64
10-26 861.57
10-27 866.79
10-28 843.07
10-29 835.99
10-30 812.64
10-31 804.29
11-01 787.15
11-02 718.14
11-03 682.69
11-04 657.4
11-05 746.41
11-06 709.97
11-07 710.37
11-08 663.46
11-09 622.28
11-10 589.05
11-11 576.97
11-12 580.09
11-13 575.15
11-14 579.17
11-15 562.38
11-16 552.77
11-17 539.58
11-18 502.47
11-19 491.1
11-20 469.89
11-21 507.67
11-22 552.23
11-23 529.02
11-24 596.93
11-25 668.91
11-26 645.15
11-27 663.04
11-28 540.08
11-29 739.06
11-30 771.23
12-01 760.28
12-02 880.0
12-03 893.31
12-04 833.53
12-05 841.61
12-06 824.39
12-07 803.98
12-08 859.0
12-09 915.85
12-10 852.76
12-11 814.31
12-12 775.09
12-13 714.1
12-14 418.73
12-15 486.67
12-16 424.0
12-17 2242.6
12-18 1966.0
12-19 2044.0
12-20 492.75
12-21 620.0
12-22 1658.25
12-23 1519.5
12-24 1624.0
12-25 1737.25
12-26 1563.75
12-27 1563.33
12-28 1461.67
12-29 612.0
12-30 1849.67
12-31 2515.0

Annual Peak Streamflow


Seasonal Comparison


Oceanic Nino Index