South Umpqua River at Tiller, OR
USGS Site No: 14308000 • South Umpqua River • Douglas County, OR
South Umpqua River at Tiller, OR on the South Umpqua River is currently at 323 cfs (High — 76th percentile for this date) . Gage height: 1.82 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 | 48 | |
| 25th | Low threshold | 68 | |
| 50th (Median) | Normal (median) | 127 | |
| 75th | High threshold | 283 | |
| 95th | Very High threshold | 1,020 | Today: 323 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 | 191 | — |
| May 27, 2026 | 194 | — |
| May 26, 2026 | 177 | — |
| May 25, 2026 | 163 | — |
| May 24, 2026 | 170 | — |
| May 23, 2026 | 177 | — |
| May 22, 2026 | 185 | — |
| May 21, 2026 | 193 | — |
| May 20, 2026 | 200 | — |
| May 19, 2026 | 209 | — |
| May 18, 2026 | 222 | — |
| May 17, 2026 | 233 | — |
| May 16, 2026 | 231 | — |
| May 15, 2026 | 235 | — |
| Apr 20, 2026 | 991 | — |
| Apr 19, 2026 | 1,150 | — |
| Apr 18, 2026 | 1,390 | — |
| Apr 17, 2026 | 1,760 | — |
| Apr 16, 2026 | 2,370 | — |
| Apr 15, 2026 | 1,730 | — |
| Apr 14, 2026 | 946 | — |
| Apr 13, 2026 | 1,030 | — |
| Apr 12, 2026 | 1,210 | — |
| Apr 11, 2026 | 1,160 | — |
| Apr 10, 2026 | 656 | — |
| Apr 9, 2026 | 595 | — |
| Apr 8, 2026 | 631 | — |
| Apr 7, 2026 | 726 | — |
| Apr 6, 2026 | 858 | — |
| Apr 5, 2026 | 1,030 | — |
Station Information
- USGS Site No
- 14308000
- State
- OR
- County
- Douglas County
- Coordinates
- 42.9304, -122.9484
- Drainage Area
- 449 mi²
- Datum (ft)
- 991.8
- HUC Code
- 17100302
Flood Stage Thresholds
- Action Stage
- 16.0 ft
- Flood Stage
- 18.0 ft
- Moderate Flood
- 21.0 ft
- Major Flood
- 25.0 ft
Currently 16.18 ft below flood stage.
Recent Extremes
- Max discharge
-
6,390 cfsFeb 25, 2026
- Min discharge
-
31 cfsAug 31, 2025
- Days at flood stage
- 0
Computed from the local daily-values archive.
Nearby Gauges
-
Elk Creek near Drew, ORNormal3.2 mi · 9 cfs
-
Cow Creek above Galesville Reservoir, near Azalea, Or.Normal11.6 mi · 10 cfs
-
Cow Creek Near Azalea, ORNormal13.8 mi · 22 cfs
-
South Umpqua River at Canyonville, ORVery High17.1 mi · 312 cfs
-
Elk Creek Near Trail, ORHigh20.3 mi · 36 cfs