Mad River Near Dayton OH
USGS Site No: 03270000 • Mad River • Greene County, OH
Mad River Near Dayton OH on the Mad River is currently at 2,550 cfs (Very High — 103th percentile for this date) . Gage height: 6.82 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 | 251 | |
| 25th | Low threshold | 290 | |
| 50th (Median) | Normal (median) | 376 | |
| 75th | High threshold | 558 | |
| 95th | Very High threshold | 1,450 |
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 | 6,710 | — |
| May 27, 2026 | 4,290 | — |
| May 26, 2026 | 2,670 | — |
| May 25, 2026 | 4,000 | — |
| May 24, 2026 | 8,520 | — |
| May 23, 2026 | 6,470 | — |
| May 22, 2026 | 1,440 | — |
| May 21, 2026 | 2,180 | — |
| May 20, 2026 | 2,020 | — |
| May 19, 2026 | 611 | — |
| May 18, 2026 | 554 | — |
| May 17, 2026 | 596 | — |
| May 16, 2026 | 499 | — |
| May 15, 2026 | 523 | — |
| Apr 21, 2026 | 456 | — |
| Apr 20, 2026 | 484 | — |
| Apr 19, 2026 | 515 | — |
| Apr 18, 2026 | 526 | — |
| Apr 17, 2026 | 532 | — |
| Apr 16, 2026 | 555 | — |
| Apr 15, 2026 | 559 | — |
| Apr 14, 2026 | 545 | — |
| Apr 13, 2026 | 552 | — |
| Apr 12, 2026 | 558 | — |
| Apr 11, 2026 | 586 | — |
| Apr 10, 2026 | 614 | — |
| Apr 9, 2026 | 648 | — |
| Apr 8, 2026 | 698 | — |
| Apr 7, 2026 | 773 | — |
| Apr 6, 2026 | 903 | — |
Station Information
- USGS Site No
- 03270000
- State
- OH
- County
- Greene County
- Coordinates
- 39.7973, -84.0885
- Drainage Area
- 635 mi²
- Datum (ft)
- 776.3
- HUC Code
- 05080001
Flood Stage Thresholds
- Action Stage
- 15.0 ft
- Flood Stage
- 25.0 ft
- Moderate Flood
- 32.0 ft
- Major Flood
- 52.0 ft
Currently 18.18 ft below flood stage.
Recent Extremes
- Max discharge
-
8,520 cfsMay 24, 2026
- Min discharge
-
237 cfsSep 15, 2025
- Days at flood stage
- 0
Computed from the local daily-values archive.
Nearby Gauges
-
Great Miami River at Dayton OHVery High6.2 mi · 10,100 cfs
-
Great Miami River at Taylorsville OHVery High6.6 mi · 4,010 cfs
-
Wolf Creek at Dayton OHHigh8.1 mi · 144 cfs
-
Little Miami River Near Oldtown OHVery High9.0 mi · 584 cfs
-
Holes Creek Near Kettering OHHigh11.4 mi · 23 cfs