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Floyd River At Alton, 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
01-01 155.92
01-02 159.48
01-03 198.07
01-04 167.32
01-05 160.4
01-06 127.8
01-07 123.4
01-08 124.4
01-09 131.92
01-10 116.12
01-11 150.32
01-12 160.6
01-13 230.33
01-14 188.0
01-15 175.0
01-16 169.33
01-17 145.15
01-18 155.87
01-19 169.13
01-20 184.73
01-21 174.1
01-22 73.6
01-23 72.3
01-24 78.6
01-25 82.2
01-26 82.2
01-27 83.4
01-28 84.7
01-29 84.7
01-30 83.4
01-31 87.2
02-01 89.7
02-02 87.2
02-03 89.7
02-04 60.35
02-05 56.95
02-06 41.63
02-07 82.15
02-08 101.33
02-09 74.38
02-10 100.07
02-11 100.4
02-12 139.75
02-13 92.03
02-14 92.2
02-15 97.4
02-16 93.5
02-17 92.2
02-18 92.2
02-19 96.1
02-20 96.1
02-21 94.8
02-22 93.5
02-26 429.0
02-27 402.0
02-28 466.0
02-29 642.0
03-01 610.0
03-02 466.0
03-03 518.0
03-04 220.73
03-05 184.9
03-06 137.03
03-07 162.3
03-08 176.9
03-09 184.28
03-10 288.62
03-11 220.9
03-12 174.57
03-13 114.44
03-14 98.72
03-15 110.13
03-16 418.48
03-17 323.06
03-18 245.05
03-19 180.02
03-20 130.46
03-21 150.6
03-22 121.82
03-23 123.33
03-24 130.29
03-25 175.1
03-26 164.11
03-27 167.7
03-28 156.93
03-29 177.86
03-30 192.36
03-31 135.28
04-01 152.76
04-02 151.53
04-03 150.67
04-04 157.98
04-05 149.07
04-06 142.65
04-07 166.85
04-08 163.04
04-09 116.35
04-10 135.81
04-11 144.61
04-12 160.15
04-13 154.05
04-14 140.97
04-15 123.85
04-16 117.82
04-17 122.42
04-18 124.65
04-19 127.43
04-20 125.58
04-21 148.23
04-22 163.23
04-23 161.53
04-24 151.25
04-25 126.16
04-26 145.09
04-27 141.05
04-28 166.16
04-29 192.99
04-30 172.85
05-01 189.47
05-02 193.5
05-03 186.8
05-04 188.73
05-05 180.43
05-06 177.26
05-07 169.25
05-08 144.46
05-09 164.55
05-10 165.13
05-11 160.03
05-12 192.85
05-13 238.09
05-14 180.36
05-15 180.16
05-16 178.16
05-17 179.88
05-18 191.03
05-19 188.07
05-20 201.77
05-21 213.27
05-22 235.98
05-23 231.87
05-24 247.01
05-25 283.29
05-26 275.75
05-27 423.55
05-28 594.86
05-29 491.91
05-30 397.57
05-31 361.54
06-01 310.88
06-02 277.1
06-03 243.44
06-04 247.85
06-05 265.45
06-06 247.4
06-07 227.86
06-08 198.91
06-09 201.81
06-10 277.84
06-11 292.17
06-12 237.71
06-13 215.2
06-14 203.01
06-15 235.09
06-16 329.04
06-17 439.21
06-18 345.99
06-19 821.85
06-20 407.39
06-21 346.96
06-22 739.16
06-23 513.15
06-24 401.7
06-25 319.36
06-26 701.86
06-27 531.12
06-28 444.54
06-29 255.7
06-30 310.05
07-01 275.33
07-02 336.36
07-03 325.77
07-04 239.8
07-05 225.82
07-06 221.89
07-07 206.51
07-08 184.86
07-09 168.16
07-10 158.42
07-11 146.67
07-12 151.2
07-13 111.17
07-14 145.43
07-15 146.17
07-16 152.98
07-17 139.81
07-18 134.14
07-19 121.22
07-20 118.19
07-21 115.53
07-22 111.33
07-23 107.57
07-24 97.72
07-25 93.53
07-26 94.96
07-27 86.68
07-28 84.36
07-29 102.41
07-30 197.1
07-31 323.59
08-01 124.14
08-02 101.59
08-03 83.98
08-04 74.73
08-05 72.79
08-06 85.3
08-07 95.46
08-08 103.33
08-09 90.96
08-10 79.46
08-11 65.48
08-12 66.32
08-13 57.12
08-14 50.76
08-15 47.12
08-16 41.49
08-17 60.69
08-18 45.18
08-19 52.9
08-20 47.86
08-21 48.58
08-22 46.81
08-23 42.61
08-24 40.56
08-25 36.69
08-26 35.03
08-27 32.98
08-28 32.3
08-29 34.35
08-30 31.25
08-31 30.11
09-01 32.1
09-02 35.09
09-03 30.28
09-04 27.44
09-05 47.18
09-06 77.06
09-07 56.07
09-08 53.02
09-09 42.12
09-10 45.21
09-11 56.44
09-12 54.97
09-13 51.5
09-14 48.67
09-15 45.15
09-16 61.53
09-17 107.69
09-18 121.69
09-19 77.31
09-20 159.36
09-21 1492.91
09-22 276.54
09-23 180.63
09-24 107.6
09-25 71.26
09-26 73.26
09-27 68.67
09-28 63.03
09-29 52.45
09-30 51.35
10-01 42.35
10-02 71.14
10-03 71.89
10-04 67.65
10-05 83.98
10-06 106.4
10-07 120.4
10-08 130.9
10-09 119.56
10-10 112.67
10-11 126.87
10-12 114.51
10-13 97.05
10-14 96.45
10-15 103.56
10-16 71.75
10-17 78.04
10-18 74.1
10-19 71.1
10-20 59.91
10-21 64.21
10-22 62.05
10-23 63.06
10-24 63.78
10-25 65.87
10-26 200.09
10-27 89.87
10-28 86.72
10-29 85.45
10-30 84.4
10-31 81.69
11-01 80.27
11-02 79.84
11-03 76.37
11-04 77.39
11-05 78.87
11-06 67.5
11-07 69.28
11-08 66.61
11-09 64.72
11-10 62.72
11-11 62.07
11-12 72.96
11-13 83.02
11-14 97.84
11-15 93.71
11-16 74.33
11-17 65.88
11-18 57.28
11-19 66.93
11-20 59.32
11-21 96.18
11-22 87.24
11-23 97.32
11-24 91.19
11-25 89.04
11-26 89.99
11-27 91.49
11-28 73.82
11-29 98.76
11-30 87.53
12-01 91.62
12-02 101.3
12-03 87.48
12-04 89.05
12-05 99.55
12-06 88.26
12-07 101.67
12-08 95.13
12-09 111.36
12-10 119.68
12-11 122.55
12-12 120.95
12-13 110.82
12-14 100.08
12-15 104.37
12-16 87.24
12-17 167.43
12-18 151.3
12-19 137.02
12-20 95.76
12-21 79.3
12-22 115.95
12-23 134.14
12-24 130.7
12-25 125.74
12-26 101.53
12-27 124.52
12-28 216.2
12-29 212.15
12-30 224.25
12-31 174.32

Annual Peak Streamflow


Seasonal Comparison


Oceanic Nino Index