Seneca Creek at Dawsonville, MD
USGS Site No: 01645000 • Seneca Creek • Montgomery County, MD
Seneca Creek at Dawsonville, MD on the Seneca Creek is currently at 134 cfs (High — 79th percentile for this date) . Gage height: 2.37 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 | 25 | |
| 25th | Low threshold | 33 | |
| 50th (Median) | Normal (median) | 50 | |
| 75th | High threshold | 85 | |
| 95th | Very High threshold | 349 | Today: 134 cfs |
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 | 137 | — |
| May 27, 2026 | 142 | — |
| May 26, 2026 | 140 | — |
| May 25, 2026 | 206 | — |
| May 24, 2026 | 413 | — |
| May 23, 2026 | 280 | — |
| May 22, 2026 | 71 | — |
| May 21, 2026 | 78 | — |
| May 20, 2026 | 52 | — |
| May 19, 2026 | 48 | — |
| May 18, 2026 | 50 | — |
| May 17, 2026 | 50 | — |
| May 16, 2026 | 52 | — |
| May 15, 2026 | 56 | — |
| Apr 21, 2026 | 58 | — |
| Apr 20, 2026 | 62 | — |
| Apr 19, 2026 | 63 | — |
| Apr 18, 2026 | 61 | — |
| Apr 17, 2026 | 62 | — |
| Apr 16, 2026 | 64 | — |
| Apr 15, 2026 | 66 | — |
| Apr 14, 2026 | 65 | — |
| Apr 13, 2026 | 66 | — |
| Apr 12, 2026 | 67 | — |
| Apr 11, 2026 | 69 | — |
| Apr 10, 2026 | 74 | — |
| Apr 9, 2026 | 77 | — |
| Apr 8, 2026 | 84 | — |
| Apr 7, 2026 | 95 | — |
| Apr 6, 2026 | 116 | — |
Station Information
- USGS Site No
- 01645000
- State
- MD
- County
- Montgomery County
- Coordinates
- 39.1281, -77.3358
- Drainage Area
- 101 mi²
- Datum (ft)
- 213.3
- HUC Code
- 020700080803
Flood Stage Thresholds
- Action Stage
- 5.0 ft
- Flood Stage
- 7.5 ft
- Moderate Flood
- 11.0 ft
- Major Flood
- 16.0 ft
Currently 5.13 ft below flood stage.
Recent Extremes
- Max discharge
-
759 cfsMay 14, 2025
- Min discharge
-
32 cfsSep 15, 2025
- Days at flood stage
- 0
Computed from the local daily-values archive.
Nearby Gauges
-
Potomac River at Point Of Rocks, MDVery High15.0 mi · 34,600 cfs
-
Patuxent River Near Unity, MDNormal16.8 mi · 24 cfs
-
Hawlings River Near Sandy Spring, MDNormal17.1 mi · 11 cfs
-
Cattail Creek Near Glenwood, MDNormal17.6 mi · 17 cfs
-
Patuxent River Below Brighton Dam Near Brighton MDVery Low18.3 mi · 12 cfs