Overview Realtime Historical Map View

Willamette River At Corvallis Historical Data

Historical Data


Streamflow Range


Date Average 2026 2025 2024 2023 2022 2021 2020 2019
01-01 18855.0
01-02 20483.33
01-03 17598.33
01-04 22066.67
01-05 21534.0
01-06 25150.0
01-07 17950.0
01-08 24420.0
01-09 32533.33
01-10 20800.0
01-11 24950.0
01-12 24250.0
01-13 19900.0
01-14 27666.67
01-15 28700.0
01-16 26650.0
01-17 24083.33
01-18 21380.0
01-19 24900.0
01-20 19633.33
01-21 20998.33
01-22 16300.0
01-23 20717.5
01-24 17303.33
01-25 20898.0
01-26 17180.0
01-27 20513.33
01-28 15066.0
01-29 22005.0
01-30 8526.67
01-31 24042.0
02-01 17295.0
02-02 21606.0
02-03 14926.0
02-04 16635.0
02-05 11955.0
02-06 14150.0
02-07 6673.33
02-08 13078.33
02-09 12652.5
02-10 13831.67
02-11 11065.0
02-12 14035.0
02-13 8920.0
02-14 13880.0
02-15 11536.0
02-16 11195.0
02-17 8572.5
02-18 16405.0
02-19 14422.0
02-20 11880.0
02-21 13385.0
02-22 13686.0
02-23 11018.0
02-24 13247.5
02-25 23365.0
02-26 10860.0
02-27 16018.0
02-28 17960.0
02-29 7110.0
03-01 13220.0
03-02 15032.5
03-03 12892.5
03-04 14448.0
03-05 15632.0
03-06 11803.33
03-07 13371.43
03-08 10863.33
03-09 11596.67
03-10 9055.0
03-11 11727.5
03-12 10666.67
03-13 11467.5
03-14 11130.0
03-15 13958.75
03-16 9136.67
03-17 16068.57
03-18 21745.0
03-19 14432.5
03-20 16697.5
03-21 16241.67
03-22 20153.33
03-23 10458.57
03-24 20657.5
03-25 14138.33
03-26 10224.0
03-27 14790.0
03-28 9992.5
03-29 15660.0
03-30 15704.0
03-31 12560.0
04-01 14975.0
04-02 15620.0
04-03 14753.33
04-04 10992.5
04-05 13845.71
04-06 12721.67
04-07 14320.0
04-08 17748.0
04-09 10916.67
04-10 42346.67
04-11 24266.67
04-12 27427.5
04-13 24560.0
04-14 23052.0
04-15 19813.33
04-16 24206.67
04-17 20227.5
04-18 15230.0
04-19 14562.0
04-20 13286.0
04-21 15000.0
04-22 14205.0
04-23 13683.33
04-24 12495.0
04-25 12935.71
04-26 11300.0
04-27 12210.0
04-28 10426.0
04-29 12383.33
04-30 11065.0
05-01 12296.67
05-02 13094.0
05-03 10076.0
05-04 11934.0
05-05 10378.0
05-06 11278.0
05-07 12236.0
05-08 15564.0
05-09 15108.0
05-10 13431.43
05-11 14280.0
05-12 11028.57
05-13 11040.0
05-14 14746.67
05-15 13797.5
05-16 14298.0
05-17 13300.0
05-18 11135.71
05-19 10796.0
05-20 12435.0
05-21 10628.0
05-22 10142.0
05-23 10138.0
05-24 9355.0
05-25 9660.0
05-26 8842.0
05-27 8496.67
05-28 8651.67
05-29 8267.5
05-30 8444.29
05-31 9298.0
06-01 8297.14
06-02 7082.5
06-03 7881.43
06-04 8576.67
06-05 8030.0
06-06 8268.0
06-07 8641.67
06-08 8807.5
06-09 8460.0
06-10 7935.0
06-11 9190.0
06-12 9196.67
06-13 16453.33
06-14 11355.71
06-15 12190.0
06-16 11438.33
06-17 9733.33
06-18 8181.67
06-19 8138.33
06-20 7743.33
06-21 8388.0
06-22 7225.71
06-23 7370.0
06-24 6798.57
06-25 6946.0
06-26 6398.33
06-27 6368.33
06-28 6251.67
06-29 6208.33
06-30 6144.0
07-01 5890.0
07-02 5751.67
07-03 5528.33
07-04 5637.14
07-05 5721.67
07-06 5582.86
07-07 5564.0
07-08 5303.33
07-09 5186.0
07-10 5068.57
07-11 4952.0
07-12 4572.5
07-13 5060.0
07-14 4896.67
07-15 4834.0
07-16 4782.0
07-17 4716.0
07-18 4596.67
07-19 4752.5
07-20 4740.0
07-21 4598.33
07-22 4656.67
07-23 4605.0
07-24 4530.0
07-25 4581.67
07-26 4576.0
07-27 4767.5
07-28 4655.0
07-29 4714.0
07-30 4668.33
07-31 4892.5
08-01 4800.0
08-02 4934.0
08-03 4806.67
08-04 4922.5
08-05 4746.67
08-06 5125.0
08-07 4570.0
08-08 4725.0
08-09 4606.0
08-10 5093.33
08-11 4594.0
08-12 5066.67
08-13 4846.67
08-14 5040.0
08-15 4942.0
08-16 4785.0
08-17 4650.0
08-18 4330.0
08-19 4755.0
08-20 4697.5
08-21 4952.0
08-22 4770.0
08-23 4701.67
08-24 4627.5
08-25 4783.33
08-26 5326.67
08-27 4843.33
08-28 5226.67
08-29 5165.0
08-30 4992.5
08-31 4620.0
09-01 5030.0
09-02 5280.0
09-03 5230.0
09-04 5750.0
09-05 5146.67
09-06 5400.0
09-07 5372.0
09-08 5410.0
09-09 5034.0
09-10 6203.33
09-11 5277.5
09-12 6005.0
09-13 4944.0
09-14 5933.33
09-15 4836.0
09-16 5457.5
09-17 5093.33
09-18 5570.0
09-19 5666.0
09-20 6450.0
09-21 5360.0
09-22 5880.0
09-23 5181.67
09-24 5840.0
09-25 5205.0
09-26 5507.5
09-27 5077.5
09-28 6003.33
09-29 5486.67
09-30 6042.5
10-01 5562.5
10-02 5812.5
10-03 5686.0
10-04 5336.67
10-05 5603.33
10-06 5712.5
10-07 5708.33
10-08 5465.0
10-09 5688.0
10-10 5698.0
10-11 6487.5
10-12 6120.0
10-13 6627.5
10-14 6466.67
10-15 6260.0
10-16 6530.0
10-17 6048.0
10-18 5873.33
10-19 6956.67
10-20 7246.67
10-21 6956.0
10-22 7213.33
10-23 7795.0
10-24 8165.0
10-25 7704.0
10-26 8262.0
10-27 8207.5
10-28 8820.0
10-29 7767.5
10-30 7890.0
10-31 7511.67
11-01 6805.0
11-02 7300.0
11-03 9535.0
11-04 7475.0
11-05 8026.0
11-06 14366.67
11-07 12236.67
11-08 15000.0
11-09 12843.33
11-10 8877.5
11-11 9307.5
11-12 12256.67
11-13 10376.0
11-14 6560.0
11-15 6795.0
11-16 9083.33
11-17 9240.0
11-18 8458.33
11-19 8122.5
11-20 6545.0
11-21 8458.33
11-22 9375.0
11-23 7592.5
11-24 6762.5
11-25 7518.0
11-26 7244.0
11-27 7567.5
11-28 7065.0
11-29 8086.67
11-30 7667.5
12-01 7918.0
12-02 8636.67
12-03 7606.0
12-04 12082.5
12-05 6194.0
12-06 11304.0
12-07 6842.5
12-08 11192.0
12-09 6570.0
12-10 12502.5
12-11 9500.0
12-12 14300.0
12-13 11165.0
12-14 14276.0
12-15 13943.33
12-16 12970.0
12-17 11570.0
12-18 13691.67
12-19 10873.33
12-20 19348.33
12-21 7155.0
12-22 22604.0
12-23 23970.0
12-24 20495.0
12-25 16803.33
12-26 16294.0
12-27 12860.0
12-28 17748.0
12-29 24065.0
12-30 17288.0
12-31 20860.0

Annual Peak Streamflow


Seasonal Comparison


Oceanic Nino Index