Catoctin Creek Near Middletown, MD
USGS Site No: 01637500 • Catoctin Creek • Frederick County, MD
Catoctin Creek Near Middletown, MD on the Catoctin Creek is currently at 101 cfs (High — 86th percentile for this date) . Gage height: 2.18 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 | 5 | |
| 25th | Low threshold | 8 | |
| 50th (Median) | Normal (median) | 17 | |
| 75th | High threshold | 35 | |
| 95th | Very High threshold | 152 | Today: 101 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 | 144 | — |
| May 27, 2026 | 173 | — |
| May 26, 2026 | 158 | — |
| May 25, 2026 | 209 | — |
| May 24, 2026 | 257 | — |
| May 23, 2026 | 346 | — |
| May 22, 2026 | 110 | — |
| May 21, 2026 | 103 | — |
| May 20, 2026 | 16 | — |
| May 19, 2026 | 14 | — |
| May 18, 2026 | 15 | — |
| May 17, 2026 | 16 | — |
| May 16, 2026 | 17 | — |
| May 15, 2026 | 20 | — |
| Apr 21, 2026 | 33 | — |
| Apr 20, 2026 | 41 | — |
| Apr 19, 2026 | 42 | — |
| Apr 18, 2026 | 35 | — |
| Apr 17, 2026 | 37 | — |
| Apr 16, 2026 | 42 | — |
| Apr 15, 2026 | 48 | — |
| Apr 14, 2026 | 44 | — |
| Apr 13, 2026 | 46 | — |
| Apr 12, 2026 | 47 | — |
| Apr 11, 2026 | 52 | — |
| Apr 10, 2026 | 53 | — |
| Apr 9, 2026 | 56 | — |
| Apr 8, 2026 | 60 | — |
| Apr 7, 2026 | 68 | — |
| Apr 6, 2026 | 89 | — |
Station Information
- USGS Site No
- 01637500
- State
- MD
- County
- Frederick County
- Coordinates
- 39.4273, -77.5562
- Drainage Area
- 67 mi²
- Datum (ft)
- 376.3
- HUC Code
- 020700080102
Flood Stage Thresholds
- Action Stage
- 10.0 ft
- Flood Stage
- 15.0 ft
- Moderate Flood
- 20.0 ft
- Major Flood
- 25.0 ft
Currently 12.82 ft below flood stage.
Recent Extremes
- Max discharge
-
1,200 cfsMay 14, 2025
- Min discharge
-
2 cfsSep 16, 2025
- Days at flood stage
- 0
Computed from the local daily-values archive.
Nearby Gauges
-
Potomac River at Point Of Rocks, MDVery High10.6 mi · 34,600 cfs
-
Cattail Creek Near Glenwood, MDNormal29.5 mi · 17 cfs
-
Patuxent River Near Unity, MDNormal29.8 mi · 24 cfs
-
Morgan Run Near Louisville, MDNormal32.1 mi · 22 cfs
-
Cranberry Branch Near Westminster, MDLow33.4 mi · 1 cfs