Mongaup River at Mongaup Valley NY
USGS Site No: 01432900 • Mongaup River • Sullivan County, NY
Mongaup River at Mongaup Valley NY on the Mongaup River is currently at 72 cfs (Normal — 39th percentile for this date) . Gage height: 3.20 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 | 40 | |
| 25th | Low threshold | 57 | |
| 50th (Median) | Normal (median) | 84 | Today: 72 cfs |
| 75th | High threshold | 133 | |
| 95th | Very High threshold | 808 |
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 | 78 | — |
| May 27, 2026 | 95 | — |
| May 26, 2026 | 126 | — |
| May 25, 2026 | 166 | — |
| May 24, 2026 | 159 | — |
| May 23, 2026 | 77 | — |
| May 22, 2026 | 63 | — |
| May 21, 2026 | 67 | — |
| May 20, 2026 | 75 | — |
| May 19, 2026 | 84 | — |
| May 18, 2026 | 96 | — |
| May 17, 2026 | 112 | — |
| May 16, 2026 | 126 | — |
| May 15, 2026 | 150 | — |
| Apr 21, 2026 | 122 | — |
| Apr 20, 2026 | 141 | — |
| Apr 19, 2026 | 146 | — |
| Apr 18, 2026 | 106 | — |
| Apr 17, 2026 | 118 | — |
| Apr 16, 2026 | 132 | — |
| Apr 15, 2026 | 117 | — |
| Apr 14, 2026 | 106 | — |
| Apr 13, 2026 | 107 | — |
| Apr 12, 2026 | 114 | — |
| Apr 11, 2026 | 134 | — |
| Apr 10, 2026 | 135 | — |
| Apr 9, 2026 | 149 | — |
| Apr 8, 2026 | 168 | — |
| Apr 7, 2026 | 202 | — |
| Apr 6, 2026 | 252 | — |
Station Information
- USGS Site No
- 01432900
- State
- NY
- County
- Sullivan County
- Coordinates
- 41.6684, -74.7805
- Drainage Area
- 77 mi²
- Datum (ft)
- 1,068.4
- HUC Code
- 020401040104
Flood Stage Thresholds
- Action Stage
- 12.0 ft
- Flood Stage
- 14.0 ft
- Moderate Flood
- 14.7 ft
- Major Flood
- 15.0 ft
Currently 10.80 ft below flood stage.
Recent Extremes
- Max discharge
-
1,210 cfsMay 9, 2025
- Min discharge
-
17 cfsSep 22, 2025
- Days at flood stage
- 0
Computed from the local daily-values archive.
Nearby Gauges
- Unknown
-
Esopus Creek Below Lost Clove Road at Big Indian NYNormal34.2 mi · 39 cfs
-
Birch Creek at Big Indian NYVery Low34.9 mi · 8 cfs
-
Woodland Creek Above Mouth at Phoenicia NYNormal36.5 mi · 25 cfs
-
Esopus Creek at Allaben NYNormal37.2 mi · 57 cfs