Sacramento River below Wilkins Slough near Grimes CA
USGS Site No: 11390500 • Sacramento River • Colusa County, CA
Sacramento River below Wilkins Slough near Grimes CA on the Sacramento River is currently at 7,280 cfs (Normal — 71th percentile for this date) . Gage height: 31.21 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 | 3,880 | |
| 25th | Low threshold | 4,780 | |
| 50th (Median) | Normal (median) | 5,500 | |
| 75th | High threshold | 7,610 | Today: 7,280 cfs |
| 95th | Very High threshold | 10,700 |
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 | 6,770 | — |
| May 27, 2026 | 6,680 | — |
| May 26, 2026 | 6,220 | — |
| May 25, 2026 | 5,660 | — |
| May 24, 2026 | 5,110 | — |
| May 23, 2026 | 5,080 | — |
| May 22, 2026 | 5,240 | — |
| May 21, 2026 | 5,090 | — |
| May 20, 2026 | 5,420 | — |
| May 19, 2026 | 5,840 | — |
| May 18, 2026 | 5,940 | — |
| May 17, 2026 | 5,520 | — |
| May 16, 2026 | 5,230 | — |
| May 15, 2026 | 5,020 | — |
| Apr 20, 2026 | 7,700 | — |
| Apr 19, 2026 | 8,020 | — |
| Apr 18, 2026 | 8,700 | — |
| Apr 17, 2026 | 9,460 | — |
| Apr 16, 2026 | 10,800 | — |
| Apr 15, 2026 | 12,200 | — |
| Apr 14, 2026 | 13,600 | — |
| Apr 13, 2026 | 12,600 | — |
| Apr 12, 2026 | 11,300 | — |
| Apr 11, 2026 | 10,500 | — |
| Apr 10, 2026 | 9,320 | — |
| Apr 9, 2026 | 6,910 | — |
| Apr 8, 2026 | 6,690 | — |
| Apr 7, 2026 | 6,510 | — |
| Apr 6, 2026 | 6,720 | — |
| Apr 5, 2026 | 7,060 | — |
Station Information
- USGS Site No
- 11390500
- State
- CA
- County
- Colusa County
- Coordinates
- 39.0099, -121.8247
- Drainage Area
- 12,915 mi²
- Datum (ft)
- -1.3
- HUC Code
- 18020104
Flood Stage Thresholds
- Action Stage
- 47.6 ft
- Flood Stage
- 52.7 ft
- Major Flood
- 56.1 ft
Currently 21.49 ft below flood stage.
Recent Extremes
- Max discharge
-
26,500 cfsJan 7, 2026
- Min discharge
-
3,860 cfsNov 13, 2025
- Days at flood stage
- 0
Computed from the local daily-values archive.
Nearby Gauges
-
Sacramento River at Colusa CAHigh17.0 mi · 8,730 cfs
-
Cache C at Yolo CANormal19.6 mi · 0 cfs
-
Yuba River near Marysville CAHigh19.7 mi · 1,410 cfs
-
Sacramento River at Verona CANormal20.3 mi · 11,200 cfs
-
Dry C near Wheatland CAUnknown20.8 mi · 0 cfs