Overview Realtime Historical Map View

Columbia River At International Boundary 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 89583.33
01-02 90309.09
01-03 89127.27
01-04 86016.67
01-05 89508.33
01-06 92691.67
01-07 89250.0
01-08 87266.67
01-09 91809.09
01-10 93209.09
01-11 87358.33
01-12 87816.67
01-13 87736.36
01-14 89308.33
01-15 85875.0
01-16 85358.33
01-17 87092.31
01-18 88046.15
01-19 83784.62
01-20 85307.69
01-21 85741.67
01-22 81730.77
01-23 85208.33
01-24 86746.15
01-25 87025.0
01-26 87775.0
01-27 87107.69
01-28 88315.38
01-29 89207.69
01-30 86907.69
01-31 83528.57
02-01 82178.57
02-02 77078.57
02-03 75053.85
02-04 74871.43
02-05 76266.67
02-06 72008.33
02-07 74146.15
02-08 77841.67
02-09 72671.43
02-10 74884.62
02-11 76746.15
02-12 74657.14
02-13 73885.71
02-14 74814.29
02-15 73171.43
02-16 74271.43
02-17 73515.38
02-18 75030.77
02-19 74038.46
02-20 74723.08
02-21 72185.71
02-22 71650.0
02-23 75300.0
02-24 73707.14
02-25 71491.67
02-26 65061.54
02-27 65335.71
02-28 65178.57
02-29 62775.0
03-01 59669.23
03-02 60592.86
03-03 64057.14
03-04 61500.0
03-05 60642.86
03-06 59971.43
03-07 61071.43
03-08 59378.57
03-09 61135.71
03-10 60592.86
03-11 60500.0
03-12 61800.0
03-13 60371.43
03-14 59892.31
03-15 61307.14
03-16 62621.43
03-17 63157.14
03-18 64121.43
03-19 66400.0
03-20 67714.29
03-21 67260.0
03-22 70385.71
03-23 71033.33
03-24 69953.33
03-25 70673.33
03-26 74880.0
03-27 74853.33
03-28 74453.33
03-29 73466.67
03-30 74293.33
03-31 70635.71
04-01 65893.33
04-02 63946.67
04-03 63393.33
04-04 64306.67
04-05 66113.33
04-06 62564.29
04-07 66713.33
04-08 68406.67
04-09 65815.38
04-10 70680.0
04-11 72046.67
04-12 75214.29
04-13 76478.57
04-14 77021.43
04-15 76238.46
04-16 77261.54
04-17 71941.67
04-18 77892.31
04-19 75307.69
04-20 79430.77
04-21 82757.14
04-22 82292.86
04-23 85700.0
04-24 88321.43
04-25 88676.92
04-26 88942.86
04-27 88278.57
04-28 96135.71
04-29 94000.0
04-30 91630.77
05-01 99080.0
05-02 98528.57
05-03 102514.29
05-04 106386.67
05-05 111926.67
05-06 117653.33
05-07 118613.33
05-08 120500.0
05-09 127126.67
05-10 124300.0
05-11 133266.67
05-12 135826.67
05-13 136913.33
05-14 132507.69
05-15 139669.23
05-16 149014.29
05-17 152292.86
05-18 144442.86
05-19 152680.0
05-20 160376.92
05-21 155593.33
05-22 157046.67
05-23 161113.33
05-24 167293.33
05-25 163986.67
05-26 163206.67
05-27 167520.0
05-28 164607.14
05-29 166214.29
05-30 168392.86
05-31 172666.67
06-01 175933.33
06-02 174714.29
06-03 174066.67
06-04 173733.33
06-05 176071.43
06-06 175071.43
06-07 178285.71
06-08 173200.0
06-09 171171.43
06-10 169000.0
06-11 168386.67
06-12 165842.86
06-13 160928.57
06-14 160557.14
06-15 159533.33
06-16 154973.33
06-17 156553.33
06-18 156386.67
06-19 158471.43
06-20 159542.86
06-21 159635.71
06-22 158557.14
06-23 158835.71
06-24 162285.71
06-25 161469.23
06-26 166914.29
06-27 165735.71
06-28 165800.0
06-29 163850.0
06-30 156461.54
07-01 156146.15
07-02 156623.08
07-03 161521.43
07-04 159207.69
07-05 156506.67
07-06 154566.67
07-07 155542.86
07-08 154835.71
07-09 152635.71
07-10 149966.67
07-11 146492.86
07-12 141021.43
07-13 142735.71
07-14 134946.67
07-15 134933.33
07-16 131092.86
07-17 130166.67
07-18 133669.23
07-19 131500.0
07-20 130864.29
07-21 130128.57
07-22 131092.31
07-23 128653.85
07-24 125657.14
07-25 126657.14
07-26 124271.43
07-27 122842.86
07-28 121157.14
07-29 121614.29
07-30 122484.62
07-31 118864.29
08-01 116233.33
08-02 115658.33
08-03 111014.29
08-04 107828.57
08-05 105535.71
08-06 109264.29
08-07 108984.62
08-08 107146.15
08-09 108769.23
08-10 108675.0
08-11 106864.29
08-12 104192.31
08-13 103542.86
08-14 101971.43
08-15 100935.71
08-16 102246.15
08-17 101591.67
08-18 98163.64
08-19 97825.0
08-20 93000.0
08-21 90466.67
08-22 92900.0
08-23 91253.85
08-24 90845.45
08-25 88607.69
08-26 85621.43
08-27 85676.92
08-28 84975.0
08-29 81435.71
08-30 80757.14
08-31 82084.62
09-01 80485.71
09-02 76564.29
09-03 77578.57
09-04 75428.57
09-05 77007.14
09-06 76864.29
09-07 77442.86
09-08 75964.29
09-09 74278.57
09-10 72176.92
09-11 71085.71
09-12 72442.86
09-13 70661.54
09-14 72021.43
09-15 71021.43
09-16 68692.86
09-17 69364.29
09-18 67671.43
09-19 67457.14
09-20 69171.43
09-21 68453.85
09-22 67585.71
09-23 70014.29
09-24 70885.71
09-25 69214.29
09-26 67028.57
09-27 70157.14
09-28 70076.92
09-29 70171.43
09-30 67738.46
10-01 66033.33
10-02 61953.85
10-03 60675.0
10-04 62430.77
10-05 60164.29
10-06 58371.43
10-07 60921.43
10-08 59907.14
10-09 63492.86
10-10 62428.57
10-11 61900.0
10-12 61800.0
10-13 63807.14
10-14 60785.71
10-15 61884.62
10-16 64476.92
10-17 65078.57
10-18 61557.14
10-19 62223.08
10-20 63425.0
10-21 66415.38
10-22 65464.29
10-23 68000.0
10-24 65292.86
10-25 64100.0
10-26 68976.92
10-27 68642.86
10-28 69092.31
10-29 67178.57
10-30 68921.43
10-31 69792.86
11-01 68769.23
11-02 69857.14
11-03 69569.23
11-04 66378.57
11-05 64928.57
11-06 72561.54
11-07 73776.92
11-08 73146.15
11-09 72241.67
11-10 67153.85
11-11 69630.77
11-12 64315.38
11-13 66750.0
11-14 67314.29
11-15 65761.54
11-16 72085.71
11-17 71425.0
11-18 69407.69
11-19 71238.46
11-20 71438.46
11-21 73185.71
11-22 75176.92
11-23 74446.15
11-24 75127.27
11-25 72950.0
11-26 78723.08
11-27 79400.0
11-28 75235.71
11-29 76528.57
11-30 75292.86
12-01 80300.0
12-02 82692.86
12-03 86338.46
12-04 88435.71
12-05 88364.29
12-06 89076.92
12-07 88307.69
12-08 88385.71
12-09 90200.0
12-10 91942.86
12-11 90914.29
12-12 88871.43
12-13 92161.54
12-14 89383.33
12-15 91200.0
12-16 93223.08
12-17 93483.33
12-18 95872.73
12-19 91930.77
12-20 91208.33
12-21 86746.15
12-22 89500.0
12-23 89030.77
12-24 85169.23
12-25 85984.62
12-26 91436.36
12-27 91183.33
12-28 93254.55
12-29 91608.33
12-30 91881.82
12-31 91450.0

Annual Peak Streamflow


Seasonal Comparison


Oceanic Nino Index