Cucamonga C near Mira Loma CA
USGS Site No: 11073495 • San Bernardino County, CA
Cucamonga C near Mira Loma CA is currently at 15 cfs (Low — 25th percentile for this date) . Gage height: 1.90 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 | 3 | |
| 25th | Low threshold | 15 | Today: 15 cfs |
| 50th (Median) | Normal (median) | 27 | |
| 75th | High threshold | 37 | |
| 95th | Very High threshold | 56 |
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 | 24 | — |
| May 27, 2026 | 33 | — |
| May 26, 2026 | 32 | — |
| May 25, 2026 | 19 | — |
| May 24, 2026 | 31 | — |
| May 23, 2026 | 33 | — |
| May 22, 2026 | 28 | — |
| May 21, 2026 | 41 | — |
| May 20, 2026 | 32 | — |
| May 19, 2026 | 27 | — |
| May 18, 2026 | 28 | — |
| May 17, 2026 | 32 | — |
| May 16, 2026 | 37 | — |
| May 15, 2026 | 43 | — |
| Apr 20, 2026 | 25 | — |
| Apr 19, 2026 | 24 | — |
| Apr 18, 2026 | 22 | — |
| Apr 17, 2026 | 21 | — |
| Apr 16, 2026 | 28 | — |
| Apr 15, 2026 | 24 | — |
| Apr 14, 2026 | 27 | — |
| Apr 13, 2026 | 40 | — |
| Apr 12, 2026 | 115 | — |
| Apr 11, 2026 | 49 | — |
| Apr 10, 2026 | 63 | — |
| Apr 9, 2026 | 57 | — |
| Apr 8, 2026 | 34 | — |
| Apr 7, 2026 | 31 | — |
| Apr 6, 2026 | 26 | — |
| Apr 5, 2026 | 28 | — |
Station Information
- USGS Site No
- 11073495
- State
- CA
- County
- San Bernardino County
- Coordinates
- 33.9828, -117.5995
- Drainage Area
- 76 mi²
- Datum (ft)
- 641.3
- HUC Code
- 18070203
Recent Extremes
- Max discharge
-
1,640 cfsNov 21, 2025
- Min discharge
-
0 cfsOct 24, 2025
Computed from the local daily-values archive.
Nearby Gauges
-
Santa Ana River below Prado Dam CANormal7.4 mi · 104 cfs
-
Santa Ana River at Mwd Crossing CANormal8.7 mi · 36 cfs
-
Santa Ana River at East St near San Bernardino CAHigh18.1 mi · 2 cfs
-
San Timoteo C near Loma Linda CAVery High19.8 mi · 10 cfs
-
Agua Chinon Wash at Portola Springs Road near Irvine CANormal21.2 mi · 0 cfs