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# Snake River above Jackson Lake streamflow

Daily mean discharge, Snake-Columbia basin, Wyoming

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

> Now 266 cfs, 6% below the 5-yr median.

Discharge fell to 278 cfs, down 14% on the week. The flow is 4% below the 5-year median and has declined 48% since late July as streamflow ebbs through August.

## The numbers

| Period | Current | Prior | Change |
| --- | --- | --- | --- |
| Week over week | 266 cfs | 301 cfs | -11.6% |
| Month over month | 266 cfs | 486 cfs | -45.3% |
| Year over year | 266 cfs | 185 cfs | +43.8% |
| vs 5-yr median | 266 cfs | 284 cfs | -6.3% |

## About this data

- Source: US Geological Survey (USGS)
- Series: Daily mean streamflow (discharge)
- Geography: Snake River above Jackson Lake
- Unit: cfs
- Calculation period: Daily mean
- Last observation: Aug 12, 2026
- Update frequency: Daily

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Cite: Snake River above Jackson Lake: 266 cfs daily mean discharge as of Aug 12, 2026 (USGS). The Waterline. https://the-waterline.com/streamflow/snake-river-above-jackson-lake
Canonical URL: https://the-waterline.com/streamflow/snake-river-above-jackson-lake