Cedar River at Powerplant at Cedar Falls, WA
USGS Site No: 12116400 • Cedar River • King County, WA
Cedar River at Powerplant at Cedar Falls, WA on the Cedar River is currently at 122 cfs (High — 76th percentile for this date) . Gage height: 32.20 ft.
Reading from
Historical Percentile Comparison
Today's discharge compared to the long-term record for June 11 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 | 44 | |
| 25th | Low threshold | 63 | |
| 50th (Median) | Normal (median) | 77 | |
| 75th | High threshold | 101 | |
| 95th | Very High threshold | 470 | Today: 122 cfs |
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 | 114 | 32.14 |
| May 27, 2026 | 113 | 32.13 |
| May 26, 2026 | 111 | 32.11 |
| May 25, 2026 | 107 | 32.09 |
| May 24, 2026 | 103 | 32.06 |
| May 23, 2026 | 103 | 32.05 |
| May 22, 2026 | 100 | 32.03 |
| May 21, 2026 | 86 | 31.91 |
| May 20, 2026 | 79 | 31.85 |
| May 19, 2026 | 80 | 31.86 |
| May 18, 2026 | 81 | 31.87 |
| May 17, 2026 | 83 | 31.88 |
| May 16, 2026 | 92 | 31.97 |
| May 15, 2026 | 96 | 31.99 |
| Apr 20, 2026 | 89 | 31.94 |
| Apr 19, 2026 | 88 | 31.93 |
| Apr 18, 2026 | 90 | 31.95 |
| Apr 17, 2026 | 92 | 31.97 |
| Apr 16, 2026 | 94 | 31.98 |
| Apr 15, 2026 | 96 | 32.00 |
| Apr 14, 2026 | 90 | 31.95 |
| Apr 13, 2026 | 88 | 31.93 |
| Apr 12, 2026 | 88 | 31.93 |
| Apr 11, 2026 | 89 | 31.94 |
| Apr 10, 2026 | 90 | 31.94 |
| Apr 9, 2026 | 92 | 31.96 |
| Apr 8, 2026 | 94 | 31.98 |
| Apr 7, 2026 | 96 | 32.00 |
| Apr 6, 2026 | 97 | 32.01 |
| Apr 5, 2026 | 99 | 32.02 |
Station Information
- USGS Site No
- 12116400
- State
- WA
- County
- King County
- Coordinates
- 47.4187, -121.7815
- Drainage Area
- 84 mi²
- Datum (ft)
- 910.8
- HUC Code
- 17110012
Recent Extremes
- Max discharge
-
6,410 cfsDec 11, 2025
- Min discharge
-
38 cfsOct 15, 2025
Computed from the local daily-values archive.
Nearby Gauges
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Boxley Creek Near Edgewick, WANormal3.1 mi · 61 cfs
-
Green River at Purification Plant Near Palmer, WANormal8.5 mi · 338 cfs
-
Green River Below Howard at Hanson Dam, WANormal9.4 mi · 413 cfs
-
Newaukum Creek Near Black Diamond, WANormal16.3 mi · 36 cfs
-
White River Below Clearwater River near Buckley, WAUnknown19.1 mi · 0 cfs