Monongahela River Near Masontown, PA
USGS Site No: 03072655 • Monongahela River • Greene County, PA
Monongahela River Near Masontown, PA on the Monongahela River is currently at 26,400 cfs (Very High — 96th percentile for this date) . Gage height: 14.42 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 | 1,040 | |
| 25th | Low threshold | 1,620 | |
| 50th (Median) | Normal (median) | 3,290 | |
| 75th | High threshold | 5,780 | |
| 95th | Very High threshold | 23,800 |
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 | 55,400 | — |
| May 27, 2026 | 33,300 | — |
| May 26, 2026 | 24,100 | — |
| May 25, 2026 | 32,000 | — |
| May 24, 2026 | 17,000 | — |
| May 23, 2026 | 19,300 | — |
| May 22, 2026 | 4,170 | — |
| May 21, 2026 | 2,460 | — |
| May 20, 2026 | 2,470 | — |
| May 19, 2026 | 2,520 | — |
| May 18, 2026 | 2,350 | — |
| May 17, 2026 | 2,640 | — |
| May 16, 2026 | 2,900 | — |
| May 15, 2026 | 2,500 | — |
| Apr 21, 2026 | 3,320 | — |
| Apr 20, 2026 | 2,930 | — |
| Apr 19, 2026 | 3,030 | — |
| Apr 18, 2026 | 2,810 | — |
| Apr 17, 2026 | 3,170 | — |
| Apr 16, 2026 | 4,120 | — |
| Apr 15, 2026 | 4,810 | — |
| Apr 14, 2026 | 4,760 | — |
| Apr 13, 2026 | 4,370 | — |
| Apr 12, 2026 | 3,520 | — |
| Apr 11, 2026 | 4,230 | — |
| Apr 10, 2026 | 5,280 | — |
| Apr 9, 2026 | 8,120 | — |
| Apr 8, 2026 | 11,100 | — |
| Apr 7, 2026 | 10,900 | — |
| Apr 6, 2026 | 11,700 | — |
Station Information
- USGS Site No
- 03072655
- State
- PA
- County
- Greene County
- Coordinates
- 39.8250, -79.9228
- Drainage Area
- 4,440 mi²
- Datum (ft)
- 768.5
- HUC Code
- 05020005
Flood Stage Thresholds
- Action Stage
- 15.0 ft
- Flood Stage
- 21.0 ft
- Moderate Flood
- 25.0 ft
- Major Flood
- 27.0 ft
Currently 6.58 ft below flood stage.
Recent Extremes
- Max discharge
-
63,800 cfsMay 31, 2025
- Min discharge
-
449 cfsSep 14, 2025
- Days at flood stage
- 0
Computed from the local daily-values archive.
Nearby Gauges
-
Dunkard Creek at Shannopin, PAHigh5.2 mi · 560 cfs
-
Monongahela River L&d8 (lower Pool) @ Point Marion, PAUnknown6.8 mi · 0 cfs
-
South Fork Tenmile Creek at Jefferson, PAHigh10.4 mi · 253 cfs
-
Redstone Creek at Waltersburg, PAHigh13.6 mi · 161 cfs
-
Youghiogheny River at Connellsville, PAVery High22.0 mi · 8,230 cfs