USGS · 14171600

WILLAMETTE RIVER

USGS · 14171600LIVE

WILLAMETTE RIVER AT CORVALLIS, OR

CORVALLIS, OR44.5664°N, -123.2568°W Updated 18 hr ago

FLOW RATE

4,156cfs

1D 7D 30D 1YR

Flow Rate Historical Avg

MEDIAN FLOW RATE · 7 DAY

4,156cfs 25.0% vs avg

Optimal band: 3,644–4,930 cfs

PERIOD HIGH

4,552cfs

PERIOD LOW

4,154cfs

RUNNABLE

100%

last 7 day in band

Precipitation History

Precipitation · YTD

Dry

Drier than normal

2026 to date

18.9in

-30% vs normal

18.89 in of precipitation so far this year, 30% below the 30-year normal of 27.03 in for this point in the season.

YTD Total

18.9in

This year so far

Normal to Date

27.0in

30-yr average

Typical Range

18.8–37.1in

10th–90th pct YTD

Departure

-30%

vs 30-yr normal

By Month

This year

Typical range

Normal

Jan: 3.46" · normal 6.91" (3.0–10.7)

Jan

Feb: 5.79" · normal 5.40" (2.5–8.4)

Feb

Mar: 3.43" · normal 5.90" (3.1–9.0)

Mar

Apr: 3.79" · normal 4.36" (2.6–6.1)

Apr

May: 0.80" · normal 2.80" (0.7–5.1)

May

Jun: 1.63" · normal 1.51" (0.6–2.7)

Jun

Jul: 0.00" (so far)· normal 0.35" (0.0–0.8)

Jul

Aug: normal 0.44" (0.0–1.0)

Aug

Sep: normal 1.40" (0.0–3.1)

Sep

Oct: normal 3.79" (1.0–5.8)

Oct

Nov: normal 6.81" (2.9–9.7)

Nov

Dec: normal 8.08" (3.8–11.8)

Dec

Baseline 1991–2020 · Source: Open-Meteo03:03 PM

Your History · WILLAMETTE RIVER AT CORVALLIS, OR

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Station Location

44.5664, -123.2568

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DATA · USGS · NOAA · NWSUPDATED 2026-07-09 00:00 UTC

Site #14171600·USGS

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