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# Rio Grande Floodway at San Marcial streamflow

Daily mean discharge, Rio Grande basin, New Mexico

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

Discharge at the Rio Grande Floodway at San Marcial ran to 0 cfs as of August 9.

## The numbers

| Period | Current | Prior | Change |
| --- | --- | --- | --- |
| Week over week | 0.0 cfs | 0.0 cfs | n/a |
| Month over month | 0.0 cfs | 0.0 cfs | n/a |
| Year over year | 0.0 cfs | 0.0 cfs | n/a |
| vs 5-yr median | 0.0 cfs | 0.0 cfs | n/a |

## About this data

- Source: US Geological Survey (USGS)
- Series: Daily mean streamflow (discharge)
- Geography: Rio Grande Floodway at San Marcial
- Unit: cfs
- Calculation period: Daily mean
- Last observation: Aug 12, 2026
- Update frequency: Daily

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Cite: Rio Grande Floodway at San Marcial: 0.0 cfs daily mean discharge as of Aug 12, 2026 (USGS). The Waterline. https://the-waterline.com/streamflow/rio-grande-floodway-at-san-marcial
Canonical URL: https://the-waterline.com/streamflow/rio-grande-floodway-at-san-marcial