Swatara Creek at Harper Tavern, PA
USGS Site No: 01573000 • Swatara Creek • Lebanon County, PA
Swatara Creek at Harper Tavern, PA on the Swatara Creek is currently at 250 cfs (Normal — 44th percentile for this date) . Gage height: 0.89 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 | 103 | |
| 25th | Low threshold | 159 | |
| 50th (Median) | Normal (median) | 279 | Today: 250 cfs |
| 75th | High threshold | 460 | |
| 95th | Very High threshold | 1,340 |
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 | 312 | — |
| May 27, 2026 | 363 | — |
| May 26, 2026 | 470 | — |
| May 25, 2026 | 574 | — |
| May 24, 2026 | 649 | — |
| May 23, 2026 | 237 | — |
| May 22, 2026 | 192 | — |
| May 21, 2026 | 171 | — |
| May 20, 2026 | 143 | — |
| May 19, 2026 | 154 | — |
| May 18, 2026 | 170 | — |
| May 17, 2026 | 184 | — |
| May 16, 2026 | 203 | — |
| May 15, 2026 | 245 | — |
| Apr 21, 2026 | 232 | — |
| Apr 20, 2026 | 286 | — |
| Apr 19, 2026 | 248 | — |
| Apr 18, 2026 | 226 | — |
| Apr 17, 2026 | 240 | — |
| Apr 16, 2026 | 251 | — |
| Apr 15, 2026 | 269 | — |
| Apr 14, 2026 | 279 | — |
| Apr 13, 2026 | 279 | — |
| Apr 12, 2026 | 293 | — |
| Apr 11, 2026 | 315 | — |
| Apr 10, 2026 | 323 | — |
| Apr 9, 2026 | 337 | — |
| Apr 8, 2026 | 363 | — |
| Apr 7, 2026 | 422 | — |
| Apr 6, 2026 | 536 | — |
Station Information
- USGS Site No
- 01573000
- State
- PA
- County
- Lebanon County
- Coordinates
- 40.4025, -76.5772
- Drainage Area
- 337 mi²
- Datum (ft)
- 356.0
- HUC Code
- 02050305
Flood Stage Thresholds
- Action Stage
- 7.0 ft
- Flood Stage
- 9.0 ft
- Moderate Flood
- 12.0 ft
- Major Flood
- 15.0 ft
Currently 8.11 ft below flood stage.
Recent Extremes
- Max discharge
-
6,150 cfsMay 31, 2025
- Min discharge
-
31 cfsJan 30, 2026
- Days at flood stage
- 0
Computed from the local daily-values archive.
Nearby Gauges
-
Susquehanna River at Harrisburg, PAHigh19.2 mi · 50,000 cfs
-
Tulpehocken Creek Near Bernville, PANormal21.4 mi · 63 cfs
-
Susquehanna River at Marietta, PAHigh24.2 mi · 56,300 cfs
-
Schuylkill River at Landingville, PANormal28.5 mi · 291 cfs
-
Tulpehocken Creek at Blue Marsh Damsite Near ReadingLow29.1 mi · 87 cfs