Oswego River at Lock 7, Oswego NY
USGS Site No: 04249000 • Oswego River • Oswego County, NY
Oswego River at Lock 7, Oswego NY on the Oswego River is currently at 15,300 cfs (Very High — 95th percentile for this date) . Gage height: 7.89 ft.
Reading from
Historical Percentile Comparison
Today's discharge compared to the long-term record for October 28 at this station. Percentile rank shows what fraction of historical years had lower flow on this date.
| Percentile | Label | CFS Threshold | Today's Flow |
|---|---|---|---|
| 10th | Very Low threshold | 1,410 | |
| 25th | Low threshold | 1,900 | |
| 50th (Median) | Normal (median) | 3,580 | |
| 75th | High threshold | 7,580 | |
| 95th | Very High threshold | 15,100 |
30-Day Hydrograph
Recent discharge plotted against the historical 10th–95th percentile envelope for the same calendar days. Source: USGS daily values + long-term statistics.
30-Day Flow History
| Date | Discharge (CFS) | Gage Ht (ft) |
|---|---|---|
| May 28, 2026 | 16,300 | — |
| May 27, 2026 | 17,700 | — |
| May 26, 2026 | 17,600 | — |
| May 25, 2026 | 14,500 | — |
| May 24, 2026 | 10,700 | — |
| May 23, 2026 | 9,090 | — |
| May 22, 2026 | 8,640 | — |
| May 21, 2026 | 9,400 | — |
| May 20, 2026 | 9,950 | — |
| May 19, 2026 | 9,680 | — |
| May 18, 2026 | 10,300 | — |
| May 17, 2026 | 10,700 | — |
| May 16, 2026 | 11,400 | — |
| May 15, 2026 | 10,700 | — |
| Apr 21, 2026 | 20,700 | — |
| Apr 20, 2026 | 21,200 | — |
| Apr 19, 2026 | 20,600 | — |
| Apr 18, 2026 | 19,700 | — |
| Apr 17, 2026 | 19,400 | — |
| Apr 16, 2026 | 19,000 | — |
| Apr 15, 2026 | 18,800 | — |
| Apr 14, 2026 | 18,900 | — |
| Apr 13, 2026 | 20,000 | — |
| Apr 12, 2026 | 20,300 | — |
| Apr 11, 2026 | 21,900 | — |
| Apr 10, 2026 | 23,000 | — |
| Apr 9, 2026 | 23,900 | — |
| Apr 8, 2026 | 24,400 | — |
| Apr 7, 2026 | 24,700 | — |
| Apr 6, 2026 | 24,800 | — |
Station Information
- USGS Site No
- 04249000
- State
- NY
- County
- Oswego County
- Coordinates
- 43.4514, -76.5055
- Drainage Area
- 5,100 mi²
- Datum (ft)
- 244.5
- HUC Code
- 041402030204
Recent Extremes
- Max discharge
-
24,800 cfsApr 6, 2026
- Min discharge
-
433 cfsSep 20, 2025
Computed from the local daily-values archive.
Nearby Gauges
-
Oswego River Near Phoenix NYHigh19.9 mi · 12,800 cfs
-
Seneca River Near Baldwinsville NYHigh21.2 mi · 6,800 cfs
-
Oneida River Near Euclid NYNormal22.3 mi · 3,980 cfs
-
Salmon River at Pineville NYNormal24.1 mi · 637 cfs
-
Seneca River (erie Canal) Near Port Byron NYHigh26.7 mi · 5,720 cfs