Willamette River At Salem, 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 40933.33
01-02 39727.27
01-03 35581.82
01-04 36458.33
01-05 37783.33
01-06 38183.33
01-07 39709.09
01-08 38825.0
01-09 39345.45
01-10 37666.67
01-11 36916.67
01-12 34390.91
01-13 36845.45
01-14 40800.0
01-15 39300.0
01-16 34281.82
01-17 34846.15
01-18 34333.33
01-19 43269.23
01-20 51591.67
01-21 56209.09
01-22 48461.54
01-23 42972.73
01-24 42484.62
01-25 41466.67
01-26 42091.67
01-27 42538.46
01-28 42915.38
01-29 43953.85
01-30 41314.29
01-31 39223.08
02-01 37828.57
02-02 33738.46
02-03 32314.29
02-04 30378.57
02-05 28362.86
02-06 26442.5
02-07 26704.62
02-08 25638.33
02-09 26764.29
02-10 27738.46
02-11 25892.31
02-12 26350.0
02-13 26971.43
02-14 28785.71
02-15 29707.14
02-16 29785.71
02-17 30753.85
02-18 31530.77
02-19 31200.0
02-20 31128.57
02-21 30050.0
02-22 29207.14
02-23 28250.0
02-24 30392.86
02-25 36825.0
02-26 34876.92
02-27 31521.43
02-28 27871.43
02-29 22075.0
03-01 29069.23
03-02 29992.86
03-03 29678.57
03-04 29185.71
03-05 27492.86
03-06 26600.0
03-07 28138.46
03-08 25730.77
03-09 24453.85
03-10 25464.29
03-11 26035.71
03-12 25696.43
03-13 27014.29
03-14 29850.71
03-15 31842.86
03-16 33221.43
03-17 34750.0
03-18 33842.86
03-19 34893.33
03-20 30307.14
03-21 30046.67
03-22 33007.14
03-23 32243.33
03-24 33016.67
03-25 32833.33
03-26 30946.67
03-27 29326.67
03-28 28653.33
03-29 29606.67
03-30 31253.33
03-31 32800.0
04-01 33613.33
04-02 32820.0
04-03 31553.33
04-04 29373.33
04-05 27733.33
04-06 26907.14
04-07 27793.33
04-08 30406.67
04-09 27576.92
04-10 33126.67
04-11 32900.0
04-12 35028.57
04-13 34557.14
04-14 32214.29
04-15 31030.77
04-16 29253.85
04-17 27858.33
04-18 26761.54
04-19 25553.85
04-20 24853.85
04-21 24057.14
04-22 23864.29
04-23 23092.86
04-24 22592.86
04-25 24007.69
04-26 24500.0
04-27 25100.0
04-28 25350.0
04-29 24728.57
04-30 23271.43
05-01 23020.0
05-02 21157.14
05-03 20575.0
05-04 21158.67
05-05 20894.0
05-06 20876.67
05-07 21292.0
05-08 21501.43
05-09 21910.0
05-10 22513.57
05-11 21674.0
05-12 20751.33
05-13 20086.0
05-14 19732.31
05-15 20836.15
05-16 21955.0
05-17 21645.71
05-18 20274.67
05-19 19343.33
05-20 18846.43
05-21 17703.33
05-22 17119.33
05-23 16975.33
05-24 16085.71
05-25 16582.67
05-26 16546.67
05-27 16524.0
05-28 16421.33
05-29 16518.0
05-30 16478.67
05-31 16596.67
06-01 15946.0
06-02 15273.33
06-03 14742.67
06-04 14502.67
06-05 14588.57
06-06 15038.57
06-07 15705.71
06-08 15250.71
06-09 14709.33
06-10 14539.33
06-11 14785.33
06-12 15825.0
06-13 16423.57
06-14 16682.86
06-15 15824.67
06-16 15055.33
06-17 14421.33
06-18 13478.0
06-19 12957.86
06-20 12434.29
06-21 12126.43
06-22 11716.43
06-23 11450.71
06-24 11225.71
06-25 11090.71
06-26 10827.86
06-27 10637.14
06-28 10496.43
06-29 10302.14
06-30 10092.86
07-01 9782.14
07-02 9504.29
07-03 9894.29
07-04 9770.77
07-05 9749.29
07-06 9419.33
07-07 8541.43
07-08 8405.71
07-09 8210.0
07-10 8119.33
07-11 8068.57
07-12 8043.57
07-13 7874.29
07-14 7697.33
07-15 7711.43
07-16 7586.92
07-17 7463.57
07-18 7426.92
07-19 7298.57
07-20 7234.29
07-21 7365.71
07-22 7384.62
07-23 7305.38
07-24 7128.57
07-25 7122.14
07-26 7047.86
07-27 7007.14
07-28 6970.71
07-29 6897.86
07-30 6990.0
07-31 6868.57
08-01 6813.33
08-02 6963.08
08-03 7104.29
08-04 7127.86
08-05 7113.57
08-06 7099.29
08-07 7142.86
08-08 7052.5
08-09 7247.69
08-10 7240.0
08-11 7125.71
08-12 7107.86
08-13 7075.0
08-14 7049.29
08-15 7074.29
08-16 7063.85
08-17 7049.23
08-18 7112.5
08-19 7129.23
08-20 7107.69
08-21 7080.77
08-22 6947.5
08-23 6981.43
08-24 7059.23
08-25 7103.85
08-26 7046.43
08-27 7229.23
08-28 7137.86
08-29 7166.43
08-30 7175.0
08-31 7199.23
09-01 7312.14
09-02 7537.86
09-03 7623.57
09-04 7774.29
09-05 8045.38
09-06 8033.57
09-07 8115.71
09-08 8197.14
09-09 8175.71
09-10 8249.29
09-11 8201.43
09-12 8215.0
09-13 8139.23
09-14 8156.43
09-15 8177.14
09-16 8207.14
09-17 8255.71
09-18 8396.43
09-19 8656.43
09-20 8781.43
09-21 9045.38
09-22 8770.0
09-23 8635.0
09-24 8852.31
09-25 8771.43
09-26 9172.31
09-27 8930.71
09-28 8980.71
09-29 9685.38
09-30 10441.54
10-01 11825.0
10-02 11317.69
10-03 11447.5
10-04 10871.54
10-05 10557.14
10-06 10907.69
10-07 10752.86
10-08 10709.29
10-09 10645.0
10-10 10602.86
10-11 10685.0
10-12 10988.57
10-13 11727.69
10-14 11764.29
10-15 13103.33
10-16 12883.85
10-17 12629.29
10-18 13114.29
10-19 13603.85
10-20 14419.23
10-21 14403.08
10-22 14703.57
10-23 17042.14
10-24 17286.15
10-25 15235.0
10-26 13866.92
10-27 15307.86
10-28 15403.08
10-29 16606.43
10-30 17295.71
10-31 16867.69
11-01 18166.67
11-02 17196.43
11-03 17353.85
11-04 16496.43
11-05 16150.71
11-06 18530.0
11-07 19330.77
11-08 19485.38
11-09 18934.62
11-10 17951.54
11-11 17263.64
11-12 18609.23
11-13 19406.15
11-14 18770.0
11-15 19279.23
11-16 20650.0
11-17 21287.5
11-18 22451.54
11-19 22318.46
11-20 23857.69
11-21 26926.43
11-22 28357.69
11-23 25500.77
11-24 26602.5
11-25 26422.31
11-26 29867.14
11-27 31451.67
11-28 27532.14
11-29 28670.0
11-30 27907.86
12-01 27589.29
12-02 28193.85
12-03 28733.08
12-04 30160.71
12-05 32302.86
12-06 31026.92
12-07 31260.77
12-08 32165.71
12-09 31967.86
12-10 32565.71
12-11 34036.43
12-12 35253.57
12-13 32776.92
12-14 31775.0
12-15 28753.85
12-16 32115.38
12-17 29050.0
12-18 25071.82
12-19 34499.23
12-20 33957.5
12-21 46622.31
12-22 52190.83
12-23 48192.31
12-24 49330.83
12-25 45966.92
12-26 42564.55
12-27 44795.0
12-28 40287.27
12-29 36560.0
12-30 38610.0
12-31 38590.0

Annual Peak Streamflow


Seasonal Comparison


Oceanic Nino Index