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# Columbia River at International Boundary streamflow

Daily mean discharge, Columbia basin, Washington

_Data through Aug 12, 2026 · source last checked Aug 13, 2026 · page revised Aug 13, 2026_

> Now 87,800 cfs, 19% below the 5-yr median.

Discharge at the International Boundary fell to 88,600 cfs, down 30% from July. The reading is 17% below the 5-year median.

## The numbers

| Period | Current | Prior | Change |
| --- | --- | --- | --- |
| Week over week | 87,800 cfs | 89,400 cfs | -1.8% |
| Month over month | 87,800 cfs | 109,000 cfs | -19.4% |
| Year over year | 87,800 cfs | 90,700 cfs | -3.2% |
| vs 5-yr median | 87,800 cfs | 108,000 cfs | -18.7% |

## About this data

- Source: US Geological Survey (USGS)
- Series: Daily mean streamflow (discharge)
- Geography: Columbia River at International Boundary
- Unit: cfs
- Calculation period: Daily mean
- Last observation: Aug 12, 2026
- Update frequency: Daily

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Cite: Columbia River at International Boundary: 87,800 cfs daily mean discharge as of Aug 12, 2026 (USGS). The Waterline. https://the-waterline.com/streamflow/columbia-river-at-international-boundary
Canonical URL: https://the-waterline.com/streamflow/columbia-river-at-international-boundary