Sacramento River at Colusa CA
USGS Site No: 11389500 • Sacramento River • Colusa County, CA
Sacramento River at Colusa CA on the Sacramento River is currently at 8,730 cfs (Normal — 57th percentile for this date) . Gage height: 44.07 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 | 5,670 | |
| 25th | Low threshold | 6,640 | |
| 50th (Median) | Normal (median) | 7,890 | |
| 75th | High threshold | 10,800 | Today: 8,730 cfs |
| 95th | Very High threshold | 15,900 |
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 | 8,370 | — |
| May 27, 2026 | 8,450 | — |
| May 26, 2026 | 8,150 | — |
| May 25, 2026 | 7,670 | — |
| May 24, 2026 | 7,120 | — |
| May 23, 2026 | 6,920 | — |
| May 22, 2026 | 7,180 | — |
| May 21, 2026 | 7,130 | — |
| May 20, 2026 | 7,260 | — |
| May 19, 2026 | 7,600 | — |
| May 18, 2026 | 7,530 | — |
| May 17, 2026 | 6,980 | — |
| May 16, 2026 | 6,690 | — |
| May 15, 2026 | 6,600 | — |
| Apr 20, 2026 | 8,320 | — |
| Apr 19, 2026 | 8,540 | — |
| Apr 18, 2026 | 8,970 | — |
| Apr 17, 2026 | 9,380 | — |
| Apr 16, 2026 | 10,200 | — |
| Apr 15, 2026 | 11,400 | — |
| Apr 14, 2026 | 13,000 | — |
| Apr 13, 2026 | 12,900 | — |
| Apr 12, 2026 | 11,600 | — |
| Apr 11, 2026 | 10,900 | — |
| Apr 10, 2026 | 10,300 | — |
| Apr 9, 2026 | 8,180 | — |
| Apr 8, 2026 | 7,370 | — |
| Apr 7, 2026 | 7,200 | — |
| Apr 6, 2026 | 7,250 | — |
| Apr 5, 2026 | 7,470 | — |
Station Information
- USGS Site No
- 11389500
- State
- CA
- County
- Colusa County
- Coordinates
- 39.2140, -122.0002
- Drainage Area
- 12,090 mi²
- Datum (ft)
- -1.5
- HUC Code
- 18020104
Flood Stage Thresholds
- Action Stage
- 63.0 ft
- Flood Stage
- 70.0 ft
- Moderate Flood
- 72.0 ft
- Major Flood
- 73.0 ft
Currently 25.93 ft below flood stage.
Recent Extremes
- Max discharge
-
45,700 cfsJan 7, 2026
- Min discharge
-
3,730 cfsNov 12, 2025
- Days at flood stage
- 0
Computed from the local daily-values archive.
Nearby Gauges
-
Sacramento River below Wilkins Slough near Grimes CANormal17.0 mi · 7,280 cfs
- Unknown
- Unknown
-
Yuba River near Marysville CANormal25.6 mi · 1,410 cfs
- Unknown