Kuskokwim River at Mcgrath AK
USGS Site No: 15303600 • Kuskokwim River • Yukon-Koyukuk Census Area, AK
Kuskokwim River at Mcgrath AK on the Kuskokwim River is currently at 4,630 cfs (Low — 17th percentile for this date) . Gage height: 11.00 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 | 0 | |
| 25th | Low threshold | 9,570 | Today: 4,630 cfs |
| 50th (Median) | Normal (median) | 11,500 | |
| 75th | High threshold | 11,700 | |
| 95th | Very High threshold | 0 |
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) |
|---|---|---|
| Oct 3, 2025 | 22,800 | — |
| Oct 2, 2025 | 22,300 | — |
| Oct 1, 2025 | 22,400 | — |
| Sep 30, 2025 | 22,800 | — |
| Sep 29, 2025 | 23,400 | — |
| Sep 28, 2025 | 23,800 | — |
| Sep 27, 2025 | 24,000 | — |
| Sep 26, 2025 | 24,300 | — |
| Sep 25, 2025 | 24,700 | — |
| Sep 24, 2025 | 25,200 | — |
| Sep 23, 2025 | 25,600 | — |
| Sep 22, 2025 | 26,300 | — |
| Sep 21, 2025 | 27,000 | — |
| Sep 20, 2025 | 27,800 | — |
| Sep 19, 2025 | 28,800 | — |
| Sep 18, 2025 | 30,000 | — |
| Sep 17, 2025 | 31,300 | — |
| Sep 16, 2025 | 32,700 | — |
| Sep 15, 2025 | 34,300 | — |
| Sep 14, 2025 | 36,300 | — |
| Sep 13, 2025 | 37,900 | — |
| Sep 12, 2025 | 38,700 | — |
| Sep 11, 2025 | 39,400 | — |
| Sep 10, 2025 | 40,600 | — |
| Sep 9, 2025 | 41,700 | — |
| Sep 8, 2025 | 43,000 | — |
| Sep 7, 2025 | 44,700 | — |
| Sep 6, 2025 | 45,600 | — |
| Sep 5, 2025 | 45,700 | — |
| Sep 4, 2025 | 44,900 | — |
Station Information
- USGS Site No
- 15303600
- State
- AK
- County
- Yukon-Koyukuk Census Area
- Coordinates
- 62.9522, -155.5889
- Drainage Area
- 11,560 mi²
- Datum (ft)
- 300.0
- HUC Code
- 19030405
Flood Stage Thresholds
- Action Stage
- 19.5 ft
- Flood Stage
- 21.0 ft
- Moderate Flood
- 23.5 ft
- Major Flood
- 27.0 ft
Currently 10.00 ft below flood stage.
Recent Extremes
- Max discharge
-
48,700 cfsApr 27, 2025
- Min discharge
-
22,100 cfsApr 22, 2025
- Days at flood stage
- 0
Computed from the local daily-values archive.