Iowa River At Wapello, 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 11173.33
01-02 13096.0
01-03 11790.0
01-04 12316.67
01-05 11998.33
01-06 11313.33
01-07 10646.67
01-08 9790.0
01-09 9968.33
01-10 10595.0
01-11 10561.67
01-12 10401.67
01-13 9599.0
01-14 8733.33
01-15 8045.0
01-16 7875.0
01-17 7660.0
01-18 8725.0
01-19 6702.0
01-20 7625.0
01-21 6738.0
01-22 6534.0
01-23 6346.0
01-24 6212.0
01-25 6248.0
01-26 4607.5
01-27 4652.5
01-28 6672.0
01-29 7616.67
01-30 7746.67
01-31 8030.0
02-01 8433.33
02-02 7905.0
02-03 9466.67
02-04 9373.33
02-05 9373.33
02-06 7030.0
02-07 7733.33
02-08 7756.67
02-09 7223.33
02-10 7633.33
02-11 9105.0
02-12 6896.67
02-13 6290.0
02-14 5410.0
02-15 5603.33
02-16 6510.0
02-17 5682.5
02-18 5757.5
02-19 4020.0
02-20 5657.5
02-21 6737.5
02-22 7960.0
02-23 7837.5
02-24 8470.0
02-25 9392.5
02-26 9147.5
02-27 8762.5
02-28 8705.0
02-29 10360.0
03-01 8445.0
03-02 10582.0
03-03 11122.0
03-04 11488.0
03-05 11401.67
03-06 11964.29
03-07 11545.0
03-08 11122.5
03-09 9418.89
03-10 9499.0
03-11 15483.0
03-12 16656.0
03-13 15769.09
03-14 15242.5
03-15 13606.92
03-16 13925.38
03-17 13603.85
03-18 13131.54
03-19 12998.57
03-20 16161.43
03-21 16627.33
03-22 15118.57
03-23 15314.67
03-24 14390.67
03-25 14204.67
03-26 13955.33
03-27 13928.67
03-28 14000.67
03-29 13866.67
03-30 13540.67
03-31 12413.57
04-01 12486.67
04-02 12562.67
04-03 13160.67
04-04 13736.0
04-05 13602.0
04-06 13714.67
04-07 14056.0
04-08 14110.67
04-09 13379.29
04-10 13556.0
04-11 14088.67
04-12 16143.57
04-13 15372.86
04-14 14050.0
04-15 13784.62
04-16 14422.31
04-17 15193.08
04-18 15998.46
04-19 18041.54
04-20 21372.31
04-21 19294.29
04-22 17447.14
04-23 16311.43
04-24 15443.57
04-25 15316.92
04-26 15860.0
04-27 15893.57
04-28 15749.29
04-29 15630.71
04-30 15976.43
05-01 17369.33
05-02 17066.43
05-03 16440.0
05-04 16227.14
05-05 18329.33
05-06 18026.0
05-07 17502.67
05-08 16775.71
05-09 16694.67
05-10 16584.0
05-11 16751.33
05-12 16495.33
05-13 15919.33
05-14 14974.29
05-15 14886.43
05-16 14925.0
05-17 14442.86
05-18 14137.33
05-19 14669.33
05-20 15712.86
05-21 15538.0
05-22 15337.86
05-23 15829.33
05-24 15636.67
05-25 15826.0
05-26 15932.0
05-27 17190.67
05-28 18729.33
05-29 19156.67
05-30 20535.33
05-31 21468.0
06-01 21294.0
06-02 20568.0
06-03 20541.33
06-04 20602.0
06-05 20900.0
06-06 19622.86
06-07 17770.0
06-08 16181.33
06-09 15903.33
06-10 16282.0
06-11 17377.33
06-12 18045.71
06-13 17840.71
06-14 17827.86
06-15 18284.67
06-16 17385.0
06-17 17492.86
06-18 18889.33
06-19 18838.57
06-20 18100.0
06-21 17937.14
06-22 18725.0
06-23 19387.86
06-24 19894.29
06-25 20049.29
06-26 21639.29
06-27 23293.57
06-28 24686.43
06-29 24032.86
06-30 23315.71
07-01 23255.0
07-02 23547.86
07-03 25408.57
07-04 24190.71
07-05 21999.33
07-06 20837.33
07-07 20936.43
07-08 20148.57
07-09 18237.14
07-10 16952.0
07-11 15951.33
07-12 15606.67
07-13 15246.43
07-14 14275.71
07-15 13622.14
07-16 12927.69
07-17 12760.71
07-18 12085.71
07-19 11307.14
07-20 10740.0
07-21 10922.86
07-22 10757.86
07-23 11303.57
07-24 11235.0
07-25 10890.0
07-26 10717.86
07-27 10846.43
07-28 10735.0
07-29 10097.14
07-30 9854.29
07-31 10062.14
08-01 10751.67
08-02 9589.29
08-03 9410.71
08-04 9097.86
08-05 8614.29
08-06 8450.0
08-07 8343.57
08-08 7863.85
08-09 7289.23
08-10 6980.77
08-11 7540.0
08-12 7837.86
08-13 8373.57
08-14 9092.86
08-15 8231.43
08-16 7554.62
08-17 7098.46
08-18 6656.67
08-19 6199.23
08-20 5723.08
08-21 5612.31
08-22 5827.5
08-23 5614.29
08-24 5360.0
08-25 5589.23
08-26 6788.57
08-27 6759.29
08-28 6225.71
08-29 5947.14
08-30 6272.14
08-31 6486.15
09-01 6317.14
09-02 6733.57
09-03 7405.71
09-04 7867.14
09-05 8454.29
09-06 7708.46
09-07 8297.86
09-08 9091.54
09-09 9566.43
09-10 9522.86
09-11 10131.43
09-12 10905.71
09-13 10149.29
09-14 9707.14
09-15 9211.43
09-16 8498.0
09-17 7925.29
09-18 7428.57
09-19 7435.0
09-20 7662.36
09-21 7613.29
09-22 7288.08
09-23 7702.0
09-24 7937.79
09-25 8249.93
09-26 8554.93
09-27 9361.36
09-28 10127.93
09-29 11998.14
09-30 13280.38
10-01 9802.0
10-02 8288.08
10-03 7240.38
10-04 7245.0
10-05 9532.5
10-06 9596.29
10-07 10264.14
10-08 11402.64
10-09 11887.0
10-10 11826.93
10-11 11663.36
10-12 11696.79
10-13 11629.57
10-14 11235.0
10-15 12016.92
10-16 7940.0
10-17 11646.15
10-18 11169.23
10-19 9791.43
10-20 9007.14
10-21 5961.67
10-22 7999.29
10-23 7745.71
10-24 7433.57
10-25 7452.14
10-26 7537.86
10-27 7707.86
10-28 7606.43
10-29 7478.57
10-30 7470.0
10-31 7454.29
11-01 7722.31
11-02 7565.83
11-03 7608.46
11-04 7627.69
11-05 7594.62
11-06 6973.85
11-07 6926.92
11-08 6680.0
11-09 6467.69
11-10 6330.0
11-11 6252.31
11-12 6268.46
11-13 6383.08
11-14 6474.29
11-15 6318.57
11-16 6176.43
11-17 6060.0
11-18 5869.23
11-19 5666.92
11-20 5873.33
11-21 5923.57
11-22 6066.15
11-23 5772.86
11-24 6321.67
11-25 6260.0
11-26 6191.54
11-27 6413.08
11-28 5788.33
11-29 7356.43
11-30 7137.14
12-01 6825.71
12-02 6729.29
12-03 6958.57
12-04 7085.0
12-05 6933.57
12-06 6904.17
12-07 7080.0
12-08 7280.91
12-09 7060.91
12-10 6849.09
12-11 6590.0
12-12 6242.73
12-13 6176.36
12-14 4999.09
12-15 4829.09
12-16 4930.0
12-17 7681.0
12-18 7942.0
12-19 7726.0
12-20 4308.89
12-21 4578.75
12-22 8614.44
12-23 8684.44
12-24 8590.0
12-25 8356.67
12-26 7984.44
12-27 8523.75
12-28 8446.25
12-29 5733.33
12-30 10032.86
12-31 11191.67

Annual Peak Streamflow


Seasonal Comparison


Oceanic Nino Index