Delaware River at Montague NJ
USGS Site No: 01438500 • Delaware River • Pike County, PA
Delaware River at Montague NJ on the Delaware River is currently at 3,540 cfs (Normal — 56th percentile for this date) . Gage height: 5.77 ft.
Reading from
Historical Percentile Comparison
Today's discharge compared to the long-term record for October 29 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 | 1,390 | |
| 25th | Low threshold | 1,830 | |
| 50th (Median) | Normal (median) | 2,720 | |
| 75th | High threshold | 6,030 | Today: 3,540 cfs |
| 95th | Very High threshold | 17,500 |
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 29, 2026 | 3,690 | — |
| May 28, 2026 | 4,630 | — |
| May 27, 2026 | 5,660 | — |
| May 26, 2026 | 6,740 | — |
| May 25, 2026 | 6,580 | — |
| May 24, 2026 | 5,100 | — |
| May 23, 2026 | 3,580 | — |
| May 22, 2026 | 3,880 | — |
| May 21, 2026 | 4,220 | — |
| May 20, 2026 | 4,860 | — |
| May 19, 2026 | 5,370 | — |
| May 18, 2026 | 5,920 | — |
| May 17, 2026 | 6,690 | — |
| May 16, 2026 | 7,440 | — |
| May 15, 2026 | 8,790 | — |
| Apr 21, 2026 | 5,550 | — |
| Apr 20, 2026 | 5,700 | — |
| Apr 19, 2026 | 4,940 | — |
| Apr 18, 2026 | 5,390 | — |
| Apr 17, 2026 | 5,960 | — |
| Apr 16, 2026 | 5,140 | — |
| Apr 15, 2026 | 5,080 | — |
| Apr 14, 2026 | 5,700 | — |
| Apr 13, 2026 | 5,940 | — |
| Apr 12, 2026 | 6,830 | — |
| Apr 11, 2026 | 7,070 | — |
| Apr 10, 2026 | 8,390 | — |
| Apr 9, 2026 | 9,100 | — |
| Apr 8, 2026 | 10,100 | — |
| Apr 7, 2026 | 11,500 | — |
Station Information
- USGS Site No
- 01438500
- State
- PA
- County
- Pike County
- Coordinates
- 41.3092, -74.7953
- Drainage Area
- 3,480 mi²
- Datum (ft)
- 369.2
- HUC Code
- 020401040704
Flood Stage Thresholds
- Action Stage
- 23.0 ft
- Flood Stage
- 25.0 ft
- Moderate Flood
- 28.0 ft
- Major Flood
- 31.0 ft
Currently 19.23 ft below flood stage.
Recent Extremes
- Max discharge
-
46,600 cfsMay 10, 2025
- Min discharge
-
1,460 cfsOct 21, 2025
- Days at flood stage
- 0
Computed from the local daily-values archive.
Nearby Gauges
- Unknown
-
Pequannock River at Oak Ridge NJNormal24.1 mi · 23 cfs
-
Wanaque River at Awosting NJNormal26.1 mi · 28 cfs
-
Green Pond Brook at Picatinny Arsenal NJNormal27.5 mi · 6 cfs
-
Green Pond Bk below Picatinny Lake at Picatinny Ars NJNormal27.8 mi · 6 cfs