Spokane River Below Nine Mile Dam at Spokane, WA
USGS Site No: 12426000 • Spokane River • Spokane County, WA
Spokane River Below Nine Mile Dam at Spokane, WA on the Spokane River is currently at 7,340 cfs (Very High — 95th percentile for this date) . Gage height: 8.88 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 | 1,820 | |
| 25th | Low threshold | 2,130 | |
| 50th (Median) | Normal (median) | 2,840 | |
| 75th | High threshold | 3,230 | |
| 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) |
|---|---|---|
| May 28, 2026 | 6,210 | — |
| May 27, 2026 | 5,980 | — |
| May 26, 2026 | 5,770 | — |
| May 25, 2026 | 5,860 | — |
| May 24, 2026 | 6,090 | — |
| May 23, 2026 | 5,790 | — |
| May 22, 2026 | 5,510 | — |
| May 21, 2026 | 5,690 | — |
| May 20, 2026 | 6,220 | — |
| May 19, 2026 | 6,810 | — |
| May 18, 2026 | 8,060 | — |
| May 17, 2026 | 8,910 | — |
| May 16, 2026 | 9,480 | — |
| May 15, 2026 | 9,780 | — |
| Apr 20, 2026 | 10,700 | — |
| Apr 19, 2026 | 11,700 | — |
| Apr 18, 2026 | 12,900 | — |
| Apr 17, 2026 | 13,300 | — |
| Apr 16, 2026 | 13,000 | — |
| Apr 15, 2026 | 12,800 | — |
| Apr 14, 2026 | 12,700 | — |
| Apr 13, 2026 | 12,800 | — |
| Apr 12, 2026 | 13,500 | — |
| Apr 11, 2026 | 13,400 | — |
| Apr 10, 2026 | 12,300 | — |
| Apr 9, 2026 | 10,200 | — |
| Apr 8, 2026 | 9,360 | — |
| Apr 7, 2026 | 9,380 | — |
| Apr 6, 2026 | 10,200 | — |
| Apr 5, 2026 | 13,900 | — |
Station Information
- USGS Site No
- 12426000
- State
- WA
- County
- Spokane County
- Coordinates
- 47.7804, -117.5455
- Drainage Area
- 5,220 mi²
- Datum (ft)
- 1,550.0
- HUC Code
- 17010307
Recent Extremes
- Max discharge
-
21,400 cfsDec 21, 2025
- Min discharge
-
905 cfsAug 28, 2025
Computed from the local daily-values archive.
Nearby Gauges
-
Little Spokane River Near Dartford, WANormal2.3 mi · 417 cfs
-
Little Spokane River at Dartford, WANormal6.6 mi · 171 cfs
-
Spokane River at Spokane, WAVery High9.5 mi · 5,930 cfs
-
Hangman Creek at Spokane, WAVery High9.9 mi · 248 cfs
-
Spokane River Below North Greene St at Spokane, WAVery High10.9 mi · 5,890 cfs