Overview Realtime Historical Map View

Tualatin River At West Linn, Or 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 3398.42
01-02 3322.73
01-03 3033.64
01-04 3189.17
01-05 3110.5
01-06 3030.67
01-07 3170.73
01-08 3209.58
01-09 3363.18
01-10 3344.5
01-11 3365.08
01-12 3461.67
01-13 3773.64
01-14 3669.09
01-15 3690.83
01-16 3602.73
01-17 3629.23
01-18 3563.33
01-19 3918.46
01-20 3999.23
01-21 3978.33
01-22 3794.62
01-23 3286.82
01-24 3636.77
01-25 3443.17
01-26 3314.42
01-27 3500.38
01-28 3538.85
01-29 3513.08
01-30 3323.21
01-31 3275.0
02-01 3212.79
02-02 3186.57
02-03 3147.29
02-04 2930.38
02-05 2732.46
02-06 2655.25
02-07 2779.69
02-08 2558.42
02-09 2451.71
02-10 2352.23
02-11 2317.69
02-12 2264.93
02-13 2353.43
02-14 2339.07
02-15 2346.14
02-16 2512.79
02-17 2398.42
02-18 2357.42
02-19 2561.79
02-20 2576.07
02-21 2551.14
02-22 2488.86
02-23 2487.43
02-24 2606.43
02-25 2931.67
02-26 2713.85
02-27 2597.86
02-28 2566.43
02-29 2226.0
03-01 2893.85
03-02 3433.57
03-03 2784.46
03-04 2671.0
03-05 2298.33
03-06 2617.08
03-07 2605.23
03-08 2660.43
03-09 2577.86
03-10 2537.36
03-11 2491.14
03-12 2485.64
03-13 2739.0
03-14 2985.64
03-15 3067.86
03-16 3293.0
03-17 3294.07
03-18 3243.29
03-19 3395.07
03-20 3088.93
03-21 3173.27
03-22 3281.43
03-23 2951.53
03-24 2815.13
03-25 2707.93
03-26 2559.67
03-27 2423.53
03-28 2292.13
03-29 2313.47
03-30 2328.53
03-31 2346.57
04-01 2274.6
04-02 2252.53
04-03 2228.53
04-04 2172.67
04-05 2128.33
04-06 2011.07
04-07 2060.87
04-08 2107.13
04-09 2014.54
04-10 2061.53
04-11 2017.13
04-12 2070.79
04-13 2050.14
04-14 1977.29
04-15 1993.23
04-16 1981.69
04-17 1704.45
04-18 1734.58
04-19 1651.0
04-20 1768.92
04-21 1631.71
04-22 1579.21
04-23 1552.29
04-24 1524.14
04-25 1446.38
04-26 1493.5
04-27 1445.86
04-28 1366.57
04-29 1274.71
04-30 1197.79
05-01 1217.8
05-02 1068.43
05-03 1017.57
05-04 1049.73
05-05 1035.0
05-06 1014.47
05-07 1002.13
05-08 924.0
05-09 945.27
05-10 913.29
05-11 859.8
05-12 815.33
05-13 795.27
05-14 770.23
05-15 754.0
05-16 819.64
05-17 820.21
05-18 784.2
05-19 775.4
05-20 745.64
05-21 679.0
05-22 645.07
05-23 630.4
05-24 648.13
05-25 648.8
05-26 630.53
05-27 611.07
05-28 608.6
05-29 585.67
05-30 571.6
05-31 551.6
06-01 522.53
06-02 503.53
06-03 481.6
06-04 460.33
06-05 473.64
06-06 482.29
06-07 481.14
06-08 453.29
06-09 442.0
06-10 448.67
06-11 509.33
06-12 516.79
06-13 491.93
06-14 489.57
06-15 465.47
06-16 437.4
06-17 422.67
06-18 406.33
06-19 415.93
06-20 396.5
06-21 378.43
06-22 370.43
06-23 359.14
06-24 346.0
06-25 346.0
06-26 347.07
06-27 347.0
06-28 377.93
06-29 358.0
06-30 343.07
07-01 321.21
07-02 309.71
07-03 304.71
07-04 291.77
07-05 286.33
07-06 288.27
07-07 286.64
07-08 279.93
07-09 273.36
07-10 272.27
07-11 272.07
07-12 271.07
07-13 258.0
07-14 259.07
07-15 269.43
07-16 267.0
07-17 259.5
07-18 280.31
07-19 279.79
07-20 272.07
07-21 260.64
07-22 254.43
07-23 254.14
07-24 257.43
07-25 256.29
07-26 252.36
07-27 246.36
07-28 241.07
07-29 236.5
07-30 240.46
07-31 234.43
08-01 220.17
08-02 226.31
08-03 227.14
08-04 226.64
08-05 232.36
08-06 230.43
08-07 229.36
08-08 231.54
08-09 233.69
08-10 232.31
08-11 222.43
08-12 224.57
08-13 224.93
08-14 225.21
08-15 226.57
08-16 227.62
08-17 227.31
08-18 226.08
08-19 220.69
08-20 221.62
08-21 220.62
08-22 219.33
08-23 216.29
08-24 214.08
08-25 212.69
08-26 209.5
08-27 211.36
08-28 217.62
08-29 219.86
08-30 224.0
08-31 236.0
09-01 235.07
09-02 239.0
09-03 236.71
09-04 240.14
09-05 243.62
09-06 247.79
09-07 271.29
09-08 259.64
09-09 244.5
09-10 241.64
09-11 249.43
09-12 247.36
09-13 229.46
09-14 234.0
09-15 243.86
09-16 251.07
09-17 251.5
09-18 270.29
09-19 319.57
09-20 332.79
09-21 336.69
09-22 290.29
09-23 279.43
09-24 273.62
09-25 281.93
09-26 305.62
09-27 309.21
09-28 324.29
09-29 365.46
09-30 450.62
10-01 501.75
10-02 475.77
10-03 474.5
10-04 416.08
10-05 355.79
10-06 343.85
10-07 305.36
10-08 301.36
10-09 286.64
10-10 313.79
10-11 317.57
10-12 337.43
10-13 354.54
10-14 383.29
10-15 458.75
10-16 465.77
10-17 453.21
10-18 495.46
10-19 464.46
10-20 481.08
10-21 474.31
10-22 519.57
10-23 593.57
10-24 662.69
10-25 619.71
10-26 526.46
10-27 557.0
10-28 583.15
10-29 614.36
10-30 577.71
10-31 636.62
11-01 614.23
11-02 687.43
11-03 682.77
11-04 629.93
11-05 699.43
11-06 869.15
11-07 1046.92
11-08 1062.92
11-09 985.15
11-10 881.92
11-11 816.67
11-12 774.31
11-13 890.15
11-14 880.64
11-15 986.29
11-16 1072.86
11-17 1096.23
11-18 1076.15
11-19 1112.69
11-20 1277.69
11-21 1479.0
11-22 1548.62
11-23 1378.46
11-24 1611.0
11-25 1844.92
11-26 1916.21
11-27 2033.25
11-28 1958.54
11-29 1952.46
11-30 1811.07
12-01 1807.64
12-02 1862.15
12-03 1857.54
12-04 1893.57
12-05 2002.57
12-06 1824.54
12-07 2086.38
12-08 2335.5
12-09 2399.79
12-10 2730.64
12-11 3039.79
12-12 3347.57
12-13 2561.77
12-14 2681.08
12-15 2462.69
12-16 2961.77
12-17 2844.83
12-18 2152.0
12-19 2836.0
12-20 2403.5
12-21 3600.75
12-22 3627.75
12-23 3553.46
12-24 3548.08
12-25 3597.31
12-26 3401.82
12-27 3841.08
12-28 3566.27
12-29 3404.36
12-30 3666.36
12-31 3580.08

Annual Peak Streamflow


Seasonal Comparison


Oceanic Nino Index